5 Complete each sentence with one suitable modal auxiliary.
а) Soldiers have to оbеу orders.
b) I think you take your umbrella.
с) Sorry, I go now. I don't want to bе late.
d) I'm not sure, but I bе аblе to help you.
е) Francesca isn't at home, so she bе оn her way here.
f) We better not leave any windows open.
g) It bе а star, it's too bright. Perhaps it's an alien spaceship!
h) I don't to go to work today. It's а holiday.
i) Sorry, but I wasn't to finish all the work you gave me.
j) I think you to ask your teacher for some advice.

a) Soldiers have to оbey orders.
Explanation: The modal auxiliary "have to" is used to show obligation, and in this sentence, it is used to show that soldiers are obligated to obey orders.

b) I think you should take your umbrella.
Explanation: The modal auxiliary "should" is used to give advice, and in this sentence, it is used to advise someone to take their umbrella.

c) Sorry, I must go now. I don't want to bе late.
Explanation: The modal auxiliary "must" is used to show strong obligation, and in this sentence, it is used to express the speaker's strong obligation to leave now to avoid being late.

d) I'm not sure, but I might bе able to help you.
Explanation: The modal auxiliary "might" is used to show possibility, and in this sentence, it is used to express the speaker's uncertainty about their ability to help.

e) Francesca isn't at home, so she must bе on her way here.
Explanation: The modal auxiliary "must" is used to show deduction or strong possibility, and in this sentence, it is used to express the speaker's deduction that Francesca is on her way here.

f) We had better not leave any windows open.
Explanation: The modal auxiliary "had better" is used to give advice or indicate a desirable action, and in this sentence, it is used to advise against leaving any windows open.

g) It can't bе a star, it's too bright. Perhaps it's an alien spaceship!
Explanation: The modal auxiliary "can't" is used to show impossibility or strong doubt, and in this sentence, it is used to express the speaker's strong doubt that it is a star, suggesting the possibility of an alien spaceship.

h) I don't have to go to work today. It's a holiday.
Explanation: The modal auxiliary "don't have to" is used to show absence of obligation, and in this sentence, it is used to express the speaker's lack of obligation to go to work due to it being a holiday.

i) Sorry, but I wasn't able to finish all the work you gave me.
Explanation: The modal auxiliary "wasn't able to" is used to show inability or lack of success, and in this sentence, it is used to express the speaker's inability to finish all the work given to them.

j) I think you should ask your teacher for some advice.
Explanation: The modal auxiliary "should" is used to give advice, and in this sentence, it is used to advise someone to ask their teacher for some advice.