1. 我根本不知道他是谁。

I know who he is .

5. They arrived Shanghai a cold morning.

   A. in;in   B. in;on   C. at;on   D. at;in

4. At last he worked out the problem.

   A. succeeded   B. successfully

   C. successful   D. success

3. Their parents were born the 1970s.

   A. in   B. at   C. on   D. of

2. Lucy was married an old businessman.

   A. to   B. with   C. in   D. at

1. She could play the violin when she was five.

   A. at the age of five   B. five years later

   C. for five years   D. five years age

② ——今天上午你植树还是看电视？

——植树。

一Will you this morning?

—I will plant trees.

① ——你和汤姆谁跑得快一点？

——汤姆。

—Who runs faster , ？

—Tom.

② Neither Mary nor Ann is living in the building.(改为 肯定句) 

Both Mary Ann living in the building.

① Both your father and your mother (play) the piano well.