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?

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

A .to be heard　　　　　 B. to be hearing

C. to hear　　　　　　　 D. to have heard

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

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

A .to be heard　　　　　 B. to be hearing

C. to hear　　　　　　　 D. to have heard

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

1. A.
   to be heard
2. B.
   to be hearing
3. C.
   to hear
4. D.
   to have heard