The students ___ busily when Miss Brown went to get a book she ___ in the office.
| A．had written ; left | B．were writing ;has left |
| C．had written ;had left | D．were writing ;had left |
---Helen, will you be at the party tonight?
---Yes, but I have so much homework to do that I really__________.
| A．can’t | B．mustn’t | C．won’t | D．shouldn’t |
Some people like drinking coffee, for it has________effects.
| A．promoting | B．stimulating | C．enhancing | D．encouraging |
After the trainer was sure that the whale could look after itself, he __________it into the sea.
| A．transported | B．unloaded | C．released | D．handled |
---English has a large vocabulary, doesn’t it?
Yes. more words and expressions and you will find it easier to read and communicate.
| A．With | B．Knowing | C．To know | D．/ |
________seems to be a strong competition in China for senior high students to enter universities does exist in other countries as well.
| A．It | B．There | C．What | D．That |