This drug is less likely to cause side effects when ________ late in the day.
All the employees of the company received a(n) _____________of $ 200 apart from their salary at the end of the year to celebrate our traditional Spring Festival.
The _________ look on his face suggested he didn’t know the fact.
The teacher ____________his students to leave the classroom as soon as possible .
Most Americans would prefer to keep their problems _________ themselves and solve their problems __________ themselves.
— How about a film tonight? — __________ I haven’t been to the cinema for a long time.