A heavy learning burden leads to unhealthy behaviors such as poor eating habits, which ___ damage the health of students.
| A．in its turn | B．in return | C．in turn | D．by turns |
---Can you tell me Sam’s telephone number?
---_________．Who is Sam? The newcomer?
| A．I think so | B．That’s OK |
| C．I’d rather not | D．I’m afraid not |
The three teams _____ different ways to solve the problem and they all succeeded at last．
| A．adopted | B．admired |
| C．adapted | D．Addicted |
The band was very successful in the seventies, most of _____ members were in their twenties．
| A．its | B．whose | C．whom | D．Which |
---Did you enjoy yourself in Hefei this summer?
---________ It was too hot．
| A．Yes, why not? | B．Not really． |
| C．All right! | D．No, I am fine． |
Every year _____ money are spent on environment protection．
| A．large quantities of | B．a large number of |
| C．a large quantity of | D．a plenty of |