Only after he had spent several nights working on the math problem _______ to wonder whether the problem was wrongly set.
A.that he began |
B.did he begin |
C.then he began |
D.so that he began |
__________ David could remember, he had never said an angry word to that customer.
A.As far as |
B.As long as |
C.As well as |
D.As much as |
________ enthusiasm when he heard our advice, he didn’t take any notice.
A.To lack |
B.Lacking of |
C.To lack in |
D.Lacking |
You must have waited here for a long time, __________?
A.mustn’t you |
B.needn’t you |
C.didn’t you |
D.haven’t you |
Although a teenager, Fred could resist ______ what to do and what not to do.
A.to be told |
B.being told |
C.having been told |
D.to have been told |
Mr. Blake __________my letter, otherwise he would have replied by now.
A.will not have received |
B.needn’t have received |
C.shouldn’t have received |
D.couldn’t have received |