The young dancers looked so charming in their beautiful clothes that we took _____pictures.
| A．many of | B．a large amount of |
| C．a plenty of | D．masses of |
—I didn’t tell him the news.
—Oh, you ought _______.
| A．to | B．not to | C．not to have | D．to have |
______ of money spent on the bridge.
| A．A large amount ; were | B．Large amounts; were |
| C．Large amount; was | D．A plenty; was |
Scientists have to work hard to keep ________ with modern discoveries and developments..
| A．company | B．track | C．touch | D．pace |
Doctors are doing research to find out what happens physically when people ______ smoking.
| A．quit | B．decline | C．depart | D．reserve |
If you are feeling so tired , perhaps a little sleep would ______.
| A．act | B．help | C．serve | D．last |