Everybody believed the man ( D)away the diamond ring A be taken B taking C to take D to have taken 我选的BThere is not any difference between the two .Ireally don't know ( B )A where to choose B which to choose C to choose what D to choose which
Everybody believed the man ( D)away the diamond ring A be taken B taking C to take D to have taken 我选的BThere is not any difference between the two .Ireally don't know ( B )A where to choose B which to choose C to choose what D to choose which
Everybody believed the man ( D)away the diamond ring
A be taken B taking C to take D to have taken 我选的B
There is not any difference between the two .Ireally don't know ( B )
A where to choose B which to choose C to choose what D to choose which 我选的D
Charless Babbage is generally considered ( C)the first computer.
A to invent B inventing Cto have invented D having invented 我选的A
I am heard him ( C )about you often.
A spoke B speaks C speak 我选的B
Everybody believed the man ( D)away the diamond ring A be taken B taking C to take D to have taken 我选的BThere is not any difference between the two .Ireally don't know ( B )A where to choose B which to choose C to choose what D to choose which
1.把题目改成：Everybody believed that the man has taken away the diamond ring.这样就容易理解了.
2.这个可以看做不定式作后置定语.I don't know which ...然后 to choose 修饰which.
I don't know which to choose = I don't know which (one) I should choose
to choose which 肯定是不对的.
3.选C.完成时表示已经发生过的事情——大家认为是Charless Babbage发明了第一台电脑.选A的话,就还没发生——那样的话可能我们今天就没有电脑用了.
4.hear somebody do something.
这个结构中 do 要用原形.
believe sb to do sth
第二题不知道为什么
第三题是已经发生过的
第四题是hear后要跟动词原形
1.believe sb to do sth.还有这短语，我也才知道。
2.I don't know what to do(where to go)。经常听到类似句子，所以选出which to choose倒是不难。
3.consider sb to do(have done) sth.就这样，根据语境选完成时到也不难。
4.不懂 - -！