1.I can’t decide dictionary I should buy.
答案:which
2.That’s he refused my invitation.
答案:why
3.I am very interested in he has improved his pronunciation in such a short time.
答案:how
4. we need is more time.
答案:What
5.The fact she had not said anything at the meeting surprised everybody.
答案:that
6.Please tell me you are waiting for.
答案:who(m)
7.Is that you are looking for?
答案:what
8.Would you please tell me the nearest post office is?
答案:where
9.I don’t know he will agree to the plan or not.
答案:whether
