I.Choose the best answer to complete each of the following sentences.
1. I was sure ______ I would overcome all these difficulties.
A. what
B. that
C. which
D. whether
2. It happened ______ Lisa wasn’t there at that time.
A. whether
B. if
C. that
D. why
3. _________ we need more practice is quite clear.
A. What
B. That
C. Which
D. When
4. _______ you don’t like him is none of my business.
A. What
B. Who
C. That
D. Whether
5. _______is a fact that English is accepted as an international language.
A. What
B. This
C. That
D. It
6.Word has come________ some guests from Canada will visit our school.
A. what
B. that
C. whether
D. when
7. _______ the old man’s sons wanted to know_____ was the gold had been hidden.
A. That ... what
B. What ... where
C. What ... that
D. That ... where
8. He told me the news_______ our team had won the game.
A. about
B. of
C. as
D. that
9. It makes no difference to me ______ he will come or not.
A. how
B. why
C. when
D. whether
10. _______ is unknown to me.
A. Where he is
B. Where is he
C. He is whereD. Is he where
