Days later, my brother called to say he was all right, but ________ say where he was.
| A．mustn't | B．shouldn't |
| C．wouldn't | D．mightn't |
--- How long are you staying?
--- I don’t know.______________.
| A．That’s OK. | B．It depends. | C．I am going. | D．It’s doesn’t matter. |
. In China, a number of people__________English now, and the number __________growing year after year.
| A．studies, is | B．are studying, is | C．is studying, is | D．is studying, are |
. ____________ the dinosaurs disappea
red still remains a mystery.
| A．whether | B．that | C．if | D．Why |
---We are afraid we can’t finish the work____________a month.
---Just take your time.
| A．among | B．after | C．within | D．by |
.The little girl was____________by a____________noise at midnight.
| A．terrified , terrified | B．terrifying, terrified |
| C．terrifying, terrifying | D．terrified, terrifying |