-Ann is in hospital. -Oh, really? I_______ know. I_______ her for a long time.
A. didn't ； will see
B. don't ,will see
C. didn't ； haven't seen
D. don't ； haven't seen
It_______ ten years since Professor Du last_______ to the earth.
A. was； came B. has been； come
C. was, come D. is； came
Mike's father_______ to London last month. He_______ there three times.
A. went； had gone B. has gone； has been
C. went； has been D. has been； had gone
He used ____on the right in China, but he soon was used____on the left in England.
A. to drive； to drive B. to drive； driving
C. to driving； to drive D. to drive； to driving
根据句意,用括号内所给单词的适当形式填空。
1.It’s good manners to speak to the old ______________（polite）.
2.________________ (communicate) between countries used to be very hard.
3.I was born in a ____________ (south) city in China.
4.Some ______________ (Canada) students will visit our school next week.
根据句意和汉语注释，写出单词的正确形式。
1.The famous actor was found ________________ (死的) at home last night.
2.The writer ________________ (接到，收到) thousands of letters every month in the past.
3.Just as the saying goes, “________________(实践，练习) makes perfect.”
4.We can often see signs like “No ________________ (实践，练习)” in parks.
