The pupils here________all kinds of exercises every day in the past four weeks.
| A．kept busy doing |
| B．keep on doing |
| C．have kept busy doing |
| D．have been kept busy doing |
It is universallythat dogs have a good sense ofsmell.
| A．acknowledged | B．acknowledging | C．to be acknowledged | D．knowledge |
Ladies and gentlemen , I have the great privilegeintroducing our speaker for tonight .
| A．in |
B．of |
C．about |
D．on |
After trying many times , they had tothe hope of saving the seriously-wounded elephant.
| A．abandon |
B．release |
C．discourage |
D．resign |
It seems quiteto expect a student to master 3000 words within only 2 days.
| A．available |
B．beneficial |
C．absurd |
D．accessible |
I’ll get Bill to accompany methe piano when I sing a song at the concert.
| A．at |
B．with . |
C．to |
D．by |