1.--hello,kate!fancy meeting you here!working again,are you?

1.--hello,kate!fancy meeting you here!working again,are you?
--yes,___,if i want to pass the exams.
a i've got to b no other day c i must do d i have on way 答案选A ,为什么?
不得不学啊.C不完整.
2.Charles Baggage is generally considered___ the first computer.
a to have invented b inventing c to invent d having invented
答案选A ,为什么?
不定式的完成时形式.接不定式是consider的需要,用完成时是事实的需要.
3._____,the players began the game.
a having taken our seats b taking our seats
c after we took our seats d being taken the seats
答案选c ,为什么不选d?
若选D,逻辑主语将变成the players ,显然不是乐队/歌手就座.
4.______ many times,but he made the same mistake again.
a having been told b although he had been told
c he had been told d having told
答案选c 为什么不选a?
but是并列连词,若选A,前者不是句子.
5.he stood there with his eyes __me
a fix b fixing on c fixed to d fixed on
答案选d 为什么不选b?
逻辑动宾（fix eyes on...）关系而非主谓关系
6.would you be ___ to do me a favour?
a as good as b so good as c enough good d good enough as
答案选B 请问 A 和B有什么区别?
as...as是同级比较.此处根本就没有进行比较.
7.he had us___ all through the party
a laughing b to laugh c laugh d laughed
答案选a 为什么不选d?
注意是让我们开怀大笑,而非被人家笑.
8.we can't keep our eyes___ to all this.
a shut b shutting c to shut d shutted
答案选a 为什么不选b?