1. 难度:中等 | |||||
________ fire, all exits must be kept clear.
|
2. 难度:中等 | |||||
Hardly could he ________ this amount of work in such a short time.
|
3. 难度:中等 | |||||
— I apologize for not being able to join you for dinner. — ________. We’ll get together later.
|
4. 难度:中等 | |||||
One thousand dollars a month is not a fortune but would help cover my living ________.
|