题目内容
9.Well,stop chatting. It's time we_______________ (开始)some serious work.
9. got down to
12. —I met your uncle on my way to school this morning. ―Ah? You _________ be joking. He flew to Germany yesterday evening ！
20. Head coach Li Yan bursts into tears of joy when she sees Zhou Yang first the finish line at the women's 1 ， 500m short track speed skating
final.
A. to cross B. having crossed
C. cross D. crossed
7. She did not have enough s _______ to walk upstairs because she was ill.
4. I won't have you _________________________ (作弊而不受惩罚）in the exam.
4. 即使我们在防止污染方面取得了很大的进步，然而需要做的还有很多。
_____________ we have made much progress in preventing pollution, yet much remains _________________ . ( even though)
6. ―What does the sign over there say?
―No person bring drinks into the student computer room.
A. will B. may
C. shall D. must
3. Nuclear science should be developed to benefit the people __________ than harm them.
8. —What sort of house do you want to have? Something big? ~ Well. it ______ be big―that's not important.
