# 第二部分 語法（六）
> 貢獻者：@芬
## 真題解析
1. ____ my wallet when I was shopping in the store.
A. must have dropped B. should have dropped
C. could drop D. ought to have dropped
> 答案：A
2. She ____ be ill because I saw her playing tennis just now.
A. can’t B. couldn’t
C. mustn’t D. may not
> 答案：A
3. He abandoned a career that ____ to his becoming one of the most influential
people in the world.
A. could have led B. would lead
C. should have led D. must lead
> 答案：A
4. Sorry, officer. I ____ at 80 miles but I didn’t see any sign in the area
telling people how fast they can drive.
A. should not drive B. shouldn’t have driven
C. mustn’t drive D. can’t drive
> 答案：B
