If it were not for the fact that she sing I would invite her to the party. A. couldn’tB

问题补充：

If it were not for the fact that she sing, I would invite her to the party.

A. couldn’t

B. shouldn’t

C. can’t

D. might not

答案：

A. couldn’t

B. shouldn’t

(答案→)C. can’t

D. might not

解析：因为她“不会”唱歌，所以我才没有邀请她去参加晚会。句中填can’t最通顺。