你一定是把我错当成我妹妹了。

You must be _______ me _____ my younger sister.

– Have you told my father about the awarding ceremony?

– Yes, but he is too busy. I don’t think he ____. But in case he ____, let him sit between us.

A. is coming; is　　 　　 B. will come; does

C. would come; will　 D. comes; do

It is no longer a question now______ the Chinese astronauts can wave our national flag in Outer space.

A．where　 　　　 B．whether　　 C．that　 　　 D．what

Effective (有效的)steps have been taken by our government to protect the rare (稀有的) ____ animals.

　　A. dangerous B. in danger C. endangered D. danger

The book, which _______ children, became popular with adults.

A. was planned for　　　　　 B. was meant by　

C. was intended for　　　　 D. was designed by

军人必须服从命令。

Niagara falls _____ not as high as Victoria Falls.         
  A. is      B. are       C. will be       D. must be

— Did you have a good time?

— Wonderful. You really gave me some excellent advice _______ the best places to visit.

A. in   B. on     C. above     D. over

We had wanted to finish our task by noon，but it didn’t quite________as planned.

A．find out 　　　　　 B．give out

C．hand out 　　　 D．work out