In the last few years, there（）great changes in the country.

单项选择题—Where was your brother at this time last night —He was writing an e-mail（）I was watching TV at home.

A. as soon as
B. after
C. until
D. while

单项选择题—Can you tell me （） —By doing more speaking.

A. how I will improve my English
B. which way can I choose
C. how do I deal with my English
D. what's wrong with my English

单项选择题I（）my clothes, and the phone rang.

A. wash
B. washed
C. am washing
D. was washing

单项选择题A:（）you（）your homework yet B: Yes. I （） it a moment ago.

A. Did; do; finished
B. Have; done; have finished
C. Have; done; finished
D. will; do; finish

单项选择题A: Why not go to see the dolphin show with me B: Because I（）it twice, let's go home.

A. saw
B. will see
C. see
D. have seen