с Present Simple, Past Simple, Present Continuous
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4.I (think) he (play) no the computer.
5.(She, eat) ice cream yesterday?
6.We (usually, drink) coffee on the morning. But now I (have) tea.
7. Little Kate (see) an elephant two days ago and (be) very surprised.
8. My sister (sing) her favorite song. She (like) to sing a lot. Last week she (take) part in a big concert and (feel) proud of it.
9. What (he, draw) last Sunday?
10. My friend (always, have) breakfast before school. He (not, like) to eat somewhere else.

4. I think he plays on the computer.
Explanation: In Present Simple, we use the base form of the verb for the third person singular (he, she, it) with the ending -s or -es.

5. Did she eat ice cream yesterday?
Explanation: Past Simple is used to talk about a completed action in the past. We use the auxiliary verb "did" in questions and the base form of the verb.

6. We usually drink coffee in the morning. But now I am having tea.
Explanation: "Usually" indicates a regular action in Present Simple. "But now" suggests a temporary action happening at this moment in Present Continuous. The correct form for the present continuous is "am / is / are + verb + -ing".

7. Little Kate saw an elephant two days ago and was very surprised.
Explanation: "Saw" is the Past Simple form of the verb "see". We use Past Simple to talk about a specific action in the past. "Was" is the Past Simple form of the verb "be".

8. My sister is singing her favorite song. She likes to sing a lot. Last week she took part in a big concert and felt proud of it.
Explanation: "Is singing" is the Present Continuous form, used to describe an action happening at the moment of speaking. "Likes" is the Present Simple form, which expresses a general truth or a habitual action. "Took" and "felt" are the Past Simple forms, used to talk about completed actions in the past.

9. What did he draw last Sunday?
Explanation: "Did" is the auxiliary verb used in Past Simple questions. "Draw" is the base form of the verb.

10. My friend always has breakfast before school. He doesn't like to eat somewhere else.
Explanation: "Always" shows a repeated action in Present Simple. "Doesn't like" is the negative form of Present Simple, where "does" is the auxiliary verb of the third person singular (he, she, it) and "like" is the base form of the verb.