问题描述：
_____when China's third manned spacecraft Shenzhou VII fulfilled its most ambitious and risky .
_____when China's third manned spacecraft Shenzhou VII fulfilled its most ambitious and risky mission:spacewalk.
A How excited it was B How exciting it was
C What exciting it was D How exciting we are
_____when China's third manned spacecraft Shenzhou VII fulfilled its most ambitious and risky mission:spacewalk.
A How excited it was B How exciting it was
C What exciting it was D How exciting we are
问题解答：
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