问题

you watched Gravity, _ the best film in2013—Yes It is asurvival story ___ in space

A:have been achieved
B:were achieving
C:had achieved
D:am achieving

正确答案是：

同类题型

All added up, there are now only ten students in the mountain school, but ten years ago there were .

or opened suddenly and ____, laughing andshouting

_____——You did That’s great! Congratulations

________it is indeed a greatsporting nation.

Without facts,we can’t form a correct opinion, for we need to have actual knowledge___________ our thinking[ ]