You __________ tell anyone about this — it’s a secret.
| A．needn’t | B．mustn’t | C．couldn’t | D．wouldn’t |
The two researchers originally set out to study the zebras in Africa and discovered a new species of tiger ______.
| A．by chance | B．in addition |
| C．by nature | D．in need |
The police warned that anyone ______guilty of taking drugs in that country would be put in prison.
| A．to find | B．found |
| C．finding | D．having found |
–Have you listened to ______ weather forecast, Linda?
–Yes. It says that there will be ______ heavy rain this weekend.
| A．the; the | B．a; the |
| C．the; a | D．a; a |
–Is it all right if I sit here?
–______, sir. The seats are for elderly people only.
| A．Better not | B．Go ahead |
| C．As you please | D．No way |
question
| A．translation | B．conclusion | C．suggestion | D．expression |