1.-do you think we should accept that offer?
-yes,we should ,for we ______such bad luck up till now,and time _____out.
a.have had; is running b.had ;is running
此题正确答案是A,但为什么不选B, up till now这个短语应该怎么用
2.if the weather had been better,we could have had a picnic.but it ___all day.
a.rained b.is raining c.rains d.has rained
此题正确答案是A,为什么不选其他三项?
3.thank you for your hard work last week,I don't think we ______it without you .
a.could manage b.can manage c. could have managed d.can have managed 此题正确答案是C,为什么不选其他三项?
4.what a pity!considering hia ability ,he ______better.
a.can have done b.might have done此题正确答案是B,为什么不选A?
5.the fact that he never apologized ____a lot about what kind of person she is.
a.says b.appears c.declares
此题正确答案是A,为什么?says在此句中应如何翻译?
6.it looks like the weather is changing for __.shall we stick to our plan?
a.worse b.the worse 此题正确答案是B,为什么?
7.he entered without knocking and,very out of breath, sank _____ a chair.
a.on b.into c.to此题正确答案是B,为什么,不是也有sink on这种用法吗?very out of breath在句中作什么成分?
8.he pulled out a gold watch,____were made of small diamonds.
a.the hands of which b.which the hands of
此题正确答案是A,为什么?b错在哪里?
9.i will give you your friend's home address,_____i can be reached most evenings.
a.which b.where 此题正确答案是B,为什么?这句话怎么翻译
10.animal suffered at the hands of man_____they were destroyed by people to make way for agricultural land .
a.in which b.for which c.so that d.in that
此题正确答案是D,为什么?此句子的结构是怎样的?
11.it was not until midnight ______they reached the camp site.
a.that b.when 此句正确答案是A,我知道A理解为强调句,但为什么不选B