51. ----The boy is gaining weight recently.

　　----I’am afraid so. He always has a great deal more, chocolate and sweets, for example,_________is necessary.

　　A. that B. where C. what D. than

　　52.----Don’t answer me with a simple搚esr” or “no”. Explain _______possible.

　　----Yes, I ’ll try my best.

　　A .whoever Bwhenever C . however D .whatever

　　53._______you may be right , I can’t altogether agree .

　　A. While B. As C. If D . Since

　　54. How can I get a job _______I can’t even read and write ?

　　A. unless B. because C . when D. although

　　55.----- I’ve made up my mind to go abroad next year , darling . What about you ?

　　----Well , _____ you’re going , so will I .

　　A . if B. since C. whether D . as long as

　　56. Not that I’m unwilling to lend you a hand ,_____ I’m too busy for the moment .

　　A . because B. but that C. but D . however

　　57. ________ ,this kind of disease can do great harm to people there.

　　A . Occurring where B. It occurs where it is C. Where does it occur D . Where it occurs

　　58. -----Don’t look down upon John . He has his own advantages .

　　-----Oh , yes _________ others are weak , he is strong .

　　A . If B. When C. Though D .Where

　　59.I felt somewhat disappointed and was about to leave_______something occurred which attracted my attention .

　　A . unless B. until C. when D . while

　　60 . Charlie Chaplin, for _____ life was hard , began acting at the age of five.

　　A . who B. whom C. whose D . his

　　61. After ________ seemed a very long time , the badly wounded soldier came back to life .

　　A . that B. it C. which D . what

　　○62. Old praise dies ______ you feed it .

　　A . if B. when C. unless D . before

　　63. The war and the suffering _____ caused affected him greatly .

　　A . what B. it C. which D . that

　　64. I will put the book ______ you placed it and make a mark at the place ________ I put it .

　　A . where ; at which B. at which ; where C. where ;which D . at which ,;at which

　　65. The science of medicine _________ progress has been rapid lately is perhaps the most important of all the science .

　　A . which B. in which C. that D . with which

　　66. ----It’s a long time ______ I saw you last .

　　----Yes , and what a pity it is since it will be a long time ______ we see each other again .

　　A . before ; since B. when ; when C. since;before D . when ,;then

　　67. She liked the dictionary so much that she would like to take it _____ it cost.

　　A . what B. how much C. whatever D . however

　　68.Have you asked her for the reason ______ may explain for her absence ?

　　A . what B. that C. why D . because

　　69. ----Why didn’t you try your best to get on the bus?

　　----I tried to, but_______I could it started moving.

　　A.until B. when C. before D. after

　　70. ______tennis, I know nothing.

　　A. When I come to B.When it comes to

　　C. Where I come to D.Where it comes to