When we visit Tibet, we can see（）

单项选择题The World Cup is being held in South Africa now.（）is one of the cities is South Afric

A. Washington
B. Ottawa
C. Toronto
D. Cape Town

单项选择题Your T-shirt is so cool. Could you tell me（）

A. where you buy it
B. where do you buy it
C. where you bought it
D. where did you buy it

单项选择题—Sharon, remember to lock the door before leaving the house. —（）

A. OK. I will.
B. Yes, please.
C. It's hard to say.
D. It doesn't matter.

单项选择题In the last few years, there（）great changes in the country.

A. had been
B. were
C. have been
D. has been

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

单项选择题There are lots of things（）I need to prepare before the trip.

A. who
B. that
C. whom
D. whose