英语单项选择题求解Zhai Zhigang's 20 minutes' walk in ___ spac

Zhai Zhigang's 20 minutes' walk in ___ space was seen by tens of millions of Chinese in 2008, and he became ___ history maker to all the Chinese.

A. the; the

B. the; a

C. /; the

D. /; a

答案是D,我选的是B.球解释.

--Your phone number again? I ___ quite catch it.

--It's 9567895.

A. didn't

B. couldn't

C. don't

D. can't

答案是A,我选的是D.球解释.

--Nancy is not coming tonight.

--But she ___ !

A. promises

B. had promised

C. promised

D. will promise

答案是C,我选的是B.球解释.