求英语答案.16. We agree that __ knowledge of English is __ must i

求英语答案.
16. We agree that __ knowledge of English is __ must in international trade today.
A. the; the B. a; a C. a; / D. / ; /
17. You mustn't lend the book to __.
A. the other B. other C. others D. the others
18. __ Wang Meng __ Li Jia __ Party members.
A. Neither ; nor ; are B. Either ; nor ; is C. Both ; and ; are
D. Neither ; or ; is
19. June is __ May and July.
A. before B. after C. between D. among
20. How beautifully she sings! I have never heard __.
A. a better voice B. a good voice C. the best voice D. the better voice
21. __ a Monday morning of May , me left __ Paris __ my friend's car.
A. On , for , in B. In , to , by C. In ,for , by D. On , to , in
22. It was __ late to catch a bus after the party , therefore we called a taxi.
A. too very B. much too C. too much D. far
23. Can you hear someone __ next door?
A. sing B. singing C. sung D. to sing
24. __ you get into a bad habit , you will find it hard to get of it.
A. Unless B. Once C. Since D. Because
25. He rushed to the station only __ the train had already gone.
A. find B. found C. finding D. to find
26. Visitors __ not to touch the exhibits . Don't you know the rule?
A. are requested B. will requested C. are being requested D. have requested
27. All the guests have been invited here to the celebration __ tomorrow.
A. holding B. held C. to hold D. to be held
28. Must I take a texi ?
No , you __ . You can take my car.
A. don't have to B. had better to C. must not D. don't
29. Do you agree with me on this point ?
Sorry . What's that ? I __ about something else.
A. though B. had thought C. am thinking D. was thinking
30. Is this the company__ ?
A. where you work in B. for which you work
C. which you work D. in which you work
31. I would appreciate it __ you call back this afternoon for the doctor's appointment.
A. until B. if C. when D. that
32. At last the robber gave everything __ he had robbed on the bank to the policeman.
A. whom B. which C. that D. what
33. Although the film star is happy with her success , she wonders __ will happen to her private life.
A. that B. what C. which D. this
34. What will you do if he __ come tomorrow ?
A. doesn't B. will not C. isn't D. don't
35. The number of people invited __ fifty , but a number of them __ absent for different reasons.
A. were ; was B. was ; was C. was ; were D. were ; were

16B have a knowledge of表示掌握某事,这个a是这个词组里的固定搭配在这个句子里,掌握英语这个短语被拿来用作名词充当主语,所以去掉上面的动词have.must这里也做名词,表示必须的事.
17C others别人
18C 不选a的原因是谓语形式错误,应为单数形式.
19C 六月在五月与七月之间
20A 比较级用作最高级的用法.意思是：再没有听过比这更好的歌曲了!
21A 在具体某一天的早上用介词on.leave for 前往某处
22B much too意为“太”
23B 你能听到隔壁有人正唱着歌么?
24B 一旦.你就会发现.
25D only to find表示“结果发现”,相当于and found.动词不定式表示结果,通常不是人们所期望的结果,往往是不好的结果,前面常常加上only.
26A 参观者被要求不能怎样怎样.
27D the celebration是被举行的
28A 我必须得打个车么?不,你不必.你可以坐我的车.
29D 翻译出这句话,觉得选d比较对
30D 这个答案不确定,记得当年老师说把句子变为陈述句形式来选答案,所以觉得选这个
31A 固定句式
32D everything后跟that
33B 她仍然怀疑着将会发生什么,选what
34A 固定的句型
35C The number of 意为“...的数量”,谓语动词为单数形式