The mason ______ I didn't do this exercise is I didn't know how to do it.

第1题

Donald: Let's eat out, shall we？Mason: I'm broke. I've gone through my paycheck for the we

Donald: Let's eat out, shall we？

Mason: I'm broke. I've gone through my paycheck for the week already.

Donald: Don't worry. ______

A．We can find a way

B．Let's split the bill

C．Just fast food

D．It's my treat

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第2题

______ I'd have told you.A．If I would have known itB．If I had have known itC．Had I known i

______ I'd have told you.

A．If I would have known it

B．If I had have known it

C．Had I known it

D．Should I known it

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第3题

按照虚数单位i的定义，方程X^2+1=0的解为（)。

A.i

B.i或-i

C.-i

D.√-i

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第4题

I might feel uneasy if I （) you.

A.is

B.were

C.was

D.am

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第5题

— Would you come to our party, please？ —（）.

A.I'm afraid I can

B.I wish I could, but I've brought you a lot of trouble

C.I'd like to, but I've already had plans for tonight

D.Thank you for asking me, but I will come

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第6题

－－－－A: Do you have to wash these clothes ？－－－ B:____ .

A.Yes,I have

B.No,I haven’t

C.Yes,I do

D.No,I didn’t

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第7题

I love ________ mountains, but I hate ________ sea.

A.the…the

B./…the

C./…/

D.the…/

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第8题

设阶方阵A、B、C满足ABC=I，则必有（)。

A.ABC=I

B.CBA=I

C.BAC=I

D.BCA=I

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The mason ______ I didn't do this exercise is I didn't know how to do it.A．why...becauseB．