34. —— OK, $ 500, but that is my last offer.—— _______.
32.You are saying that everyone should be equal, and this is _______I disagree.
31. At that time I still felt ______ my feet were cold and _______ my hands ached terribly.
30.The problem lies in ______ the mist may become a thick fog , making the situation even worse.
29. Do you think ______ possible for her to work out the difficult problem all by herself?
28. There is no doubt ______ you will be successful in time as long as you study hard.