Question

I don’t know whether you happen _______, but I’m going to study in the U.S.A. this September.

I don’t know whether you happen _______, but I’m going to study in the U.S.A. this September.
A. to be heard B. to be hearing C. to hear D. to have heard

Answer 1

D.happen to do sth碰巧发生什么事
现在说话的时间是现在
但是你听到与否的这个动作是发生在我们说话之前的事情
用现在完成时

Answer 2

D

听说是在现在之前发生，所以用完成式

Answer 3

D. to have heard
“听说”这个行为用现在完成时

Answer 4

C