问题

We collected a lot of books to get the necessary information but only half _________helpful, so we failed to finish the work.
A:is
B:are
C:was
D:were
B:are
C:was
D:were
正确答案是:
同类题型
Everything was placed _______ where he wanted it for the party, with which he was very satisfied
I can’t stop smoking, doctor.-For your health, I’m afraid you_______.
You’d better here the heavy rain.—Yes, That’s the traffic rule.
We all held the view ________ the book said was right
There is much chance _____ Bill will recover from his injury in time for the race. [ ]