They finally / reach

a village after days of walking.

The students prepare

for their exams for months.

We hope

to find some gold for days.

The child manage

to stay alive for 3 days before he was rescued.

The swimmer not / imagine

that it would be so difficult to cross the river.

My friend surf

since he was a child.

She stopped running, took the mobile phone out of her pocket and throw

it into the river.

The students sit

in the room when they heard some noise.

Peter couldn't believe that he make

such a dangerous journey on his own.

Everyone was exhausted because they run

for miles.

It was the perfect location. Palm trees sway

gently and the sun shine

brightly.

The girls were getting ready for bed when they hear

a knock at the door.

​

They finally reached a village after days of walking.
The verb "reach" is in the past tense because it is referring to an action that happened in the past. The subject "they" arrived at a village after walking for several days. The word "finally" indicates that the arrival at the village was a long-awaited event.

The students prepare for their exams for months.
The verb "prepare" is in the present tense because it is describing a habitual action. The subject "students" regularly spend months getting ready for their exams. This sentence implies that the students put in a lot of effort and time to study and be well-prepared for their exams.

We hope to find some gold for days.
The verb "hope" is in the present tense because it is expressing an ongoing desire or expectation. The subject "we" consistently hold on to the hope of finding gold. The phrase "for days" indicates that this hope has been present for an extended period of time.

The child managed to stay alive for 3 days before he was rescued.
The verb "manage" is in the past tense because it refers to an action that was successfully accomplished in the past. The subject "child" successfully maintained their survival for a specific period of time. The phrase "before he was rescued" indicates that there was a change in the situation after the child was rescued.

The swimmer did not imagine that it would be so difficult to cross the river.
The verb "imagine" is in the past tense because it describes a mental process that did not occur in the past. The subject "swimmer" did not have a previous expectation or mental image of the difficulty involved in crossing the river. The word "not" is used to indicate a negative statement.

My friend has been surfing since he was a child.
The verb "surf" is in the present perfect tense because it describes an ongoing action that started in the past and is still happening in the present. The subject "friend" started surfing when they were a child and have continued this activity since then. The word "since" indicates the starting point of the action.

She stopped running, took the mobile phone out of her pocket, and threw it into the river.
The verb "stop" is in the past tense because it describes an action that was completed in the past. The subject "she" ceased the action of running. The verbs "took" and "threw" are also in the past tense because they describe actions that happened after "she stopped running." The word "and" is used to connect the verbs in a series.

The students were sitting in the room when they heard some noise.
The verb "sit" is in the past continuous tense because it describes an ongoing action that was interrupted by another event. The subject "students" were in the process of sitting in the room when they heard a noise. The verb "heard" is in the past tense because it describes a completed action in the past.

Peter couldn't believe that he made such a dangerous journey on his own.
The verb "believe" is in the past tense because it describes a belief or emotional state in the past. The subject "Peter" had difficulty accepting the fact that he successfully completed a dangerous journey alone. The verb "made" is in the past tense to match the verb "believe" and indicate that the action of completing the journey happened in the past.

Everyone was exhausted because they had been running for miles.
The verb "be" is in the past tense because it describes a state or condition in the past. The subject "everyone" was in a state of exhaustion. The verb phrase "had been running" is in the past perfect continuous tense because it describes an ongoing action that started in the past and had been happening until a certain point in the past. The phrase "for miles" indicates the distance for which they had been running.

It was the perfect location. Palm trees swayed gently, and the sun shone brightly.
The verb "be" is in the past tense because it describes a state or condition in the past. The pronoun "it" refers to the location being described. The verb "sway" is in the present tense because it describes an ongoing action that habitually happens. The phrase "palm trees" is the subject and they continuously sway gently. The verb "shine" is also in the present tense because it describes an ongoing action that habitually happens. The subject "sun" constantly emits bright light.

The girls were getting ready for bed when they heard a knock at the door.
The verb "get" is in the past continuous tense because it describes an ongoing action that was interrupted by another event. The subject "girls" were preparing themselves for bed when they heard a knock at the door. The verb "heard" is in the past tense because it describes a completed action in the past.

I hope this explanation provides a clear understanding of how the verb tenses are used in the given sentences. If you have any further questions, please feel free to ask.