Tom was about to close the window ________ his attention was caught by a bird.
#92832
A
when
B
if
C
and
D
till
推荐题目
You can’t guess what difficulty I had_____ your home.
#95122
A
find
B
to find
C
finding
D
found
The computer was used in teaching. As a result, not only__________, but students became more interested in the lessons. 
#95226
A
saved was teachers’ energy
B
was teachers’ energy saved
C
teachers’ energy was saved
D
was saved teachers’ energy
Generally speaking, the harder one works, ____________.
#92281
A
the better he gets result
B
The better results he gets
C
He gets better results
D
Does he get better results