本人专升本能力有限,多指教了!

本人专升本能力有限,多指教了!
1.The event ____________ at the time last year.
A.happensB.happenedC.is happenedD.was happened2."I'm sorry to have kept you waiting." "Oh,not at all.I ____________here only a few minutes."
A.have beenB.had beenC.wasD.will3.If you study hard,you____________the examination.
A.has passedB.are passingC.have passedD.will pass4.He ____________the Communist Party____________2002.
A.has joined,inB.has joined,sinceC.joined,onD.joined,in5.Today's weather isn't as cold as it was yesterday,____________
A.was itB.wasn't itC.is itD.isn't it6.It was____________ the instruments were handled.A.with great careB.greatly careC.with great care thatD.carefully7.They are considering ____________ before the prices go up.
A.of buying the houseB.with buying the houseC.buying the houseD.to buy the house8.Helen had to shout____________above the sound of the music.
A.making herself hearB.to make herself hearC.making herself heardD.to make herself heard9.In such dry weather,the flowers will have to be watered if they____________.
A.have survivedB.are to surviveC.would survivedD.will survive10.It ____________ whether he will go on with his study at the university.
A.hasn't been decidedB.isn't decidedC.hasn't decidedD.doesn't decide11.____________ in this light,the matter is not as serious as people generally suppose.
A.To seeB.SeenC.SeeingD.Being seen12.If you____________quiet,I'll tell you what happened.
A.beB.are to beC.areD.will be13.____________ in simple English,the book is easy to understand.
A.WritingB.WrittenC.To writeD.Being written14.It's a fine day.Let's go fishing,____________
A.won't weB.will weC.don't weD.shall we15.I can't find my dictionary.I wonder whether Mary____________it now.
A.haveB.hasC.is havingD.had16.There____________more than 300,000 kinds of plants on the earth.
A.isB.are existingC.existsD.exist17.It was to save the child____________he got drowned.
A.thatB.whenC.butD.while18.Look,this roof is covered with____________leaves.
A.fallingB.fallenC.fellD.felt19.You aren't using this typewriter,____________
A.are youB.do youC.will youD.have you20.— You should have given them some suggestions.— ____________ ,but who would listen to me?A.So should IB.So I shouldC.So did ID.So I did​

1.选B
2.选A(到现在讲话时为止)
3.选D
4.选D
5.选C
6.选C
7.选D
8.选D
9.选C
10.选A
11.选B
12.选B
13.选B
14.选D
15.选B
16.选D
17.选D
18.选B
19.选A
20.选D
若对答案有不理解的欢迎据继续追问!O(∩_∩)O~
再问： 为什么第9题选c错误？
再答： 哦，真的万分不好意思 正确答案应该是B 这是一个条件状语从句 不能用will would，现在完成时引导 所以用be to do 在这里对我的错误表示万分歉意！ 对不起！~
再问： 不管怎么说，还是要谢谢你！
再答： 多谢你的谅解O(∩_∩)O~ 好人啊:）