1. A. to learn
The phrase "What about + gerund" is used to suggest an activity.
2. C. to stock up
The phrase "decide to + infinitive" is used to express a decision.
3. D. Suddenly
"Suddenly" is used to describe an unexpected event.
4. B. first aid kit
A first aid kit is used for treating minor injuries.
5. C. did
The past simple tense is used to describe a completed action in the past.
6. A. under
"Under" is used to indicate a position below something.
7. B. the
"The highest part" refers to a specific location.
8. C. and
"And" is used to connect two actions or ideas.
9. D. has caused
The present perfect tense is used to describe an action that started in the past and continues to the present.
10. C. have occurred
The present perfect tense is used to describe actions that have happened multiple times in the past.
11. B. Really.
"Really" is used to express surprise or interest.
12. C. It's a good idea.
This is a polite way to agree to a suggestion.
13. C. It's mine.
This is a way to claim ownership of something.
14. D. You're welcome.
This is a polite response to a thank-you.
15. C. I'm not sure.
This is a polite way to express uncertainty.