问题

The power failure made ________ difficult for us to complete the task on time. [ ]
A: that
B: it
C: one
D: this
B: it
C: one
D: this
正确答案是:
同类题型
It’s no use ________ without taking action.[ ]
My camera can be _____ to take pictures in cloudy or sunny conditions.
This is one of the oldest trees in theworld_____ such a big tree
Have you seen the man ______ plan we were talking about ______ yesterday ?
The house is built _______ there was a temple which had been built in honor of a famous monk.