On the Christmas day, I gave my sister a hat and she offered me a watch _________.

A. in turn　　　　　　 B. in return　　　　 C. by turns　　　 D. by return

Next door to ours _________, who has just returned form abroad.

A. where lives an old man　　　　 B. where does an old man live　　

C. lives an old man　　　　　　　 D. does an old man live

Ladies and gentleman, please fasten your seat belts! The plane ________.

　 A. takes off　　 B. is taking off　　 C. has taken off　　　 D. took off

The National Day and the International Labour Day are great ________ in our country.

A. things　　　　 　 B. incidents 　　　 C. accidents　 　　 D. events

The difference in thickness and weight from the earlier version makes the iPad 2 more comfortable.（ ）

A. held　 B. holding　 C. be held　　 D. to hold

They gave us so warm a welcome that we were moved very much. It was a sight__________ we__________.

A. what;have never forgotten　　　 B. which; wre never forgotten

C. as ;will never forget　　　　　　 D. that; would never forget

The survey ____ recently showed that about 1.7 billion people all over the world watched the opening ceremony of the 29th Olympic Games.

A. carrying out　　　　 　　　B. carried out

C. was carrying out　　 　　　D. was carried out

________ from the heart trouble for years, Professor White has to take some medicine with him wherever he goes.

A. Suffered　　 B. Suffering　　 C. Having suffered D. Being suffered　

—My room gets very cold at night. 　 —___________.

A. So is mine　 B. So mine is　　　 C. So does mine　 　　 D. So mine does