1 . —_________I go with my friends to the harvest festival?
—No. you’d better not.

A．Must

B．May

C．Would

D．Need

2 . 尽管条件极其艰苦，我们必须坚持下去，直到成功。
We must ________ ________ till success in spite of the extremely difficult conditions.

3 . 为了在竞争激烈的广告界脱颖而出，他们必须将最高水准的设计与创造性的方法结合起来。（汉译英）

4 . 我们的言行必须一致。（corespond, behavior）(汉译英)

5 . 我们必须提高认识并采取行动减少塑料垃圾。（汉译英）
______________________________________________________________________

6 . 要成为成功人士, 我们必须能掌握自己。(charge) （汉译英）

7 . 选用适当的单词或短语补全对话
Boss: All the documents     1     （must/can） be prepared before the meeting starts
Secretary: I know that. Kelly has been working on the documents since last Monday. She     2    （may/must）have got everything ready but I am not sure.
Boss: Wheres Kelly then?
Secretary: She     3     （must/has to）be in the sales managers office now. I saw her go in there a minute ago.

8 . There__________ be a number of people in my position.
一定有很多人处在我这种境况。