change
#4404
A
machine
B
headache
C
research
D
school
推荐题目
You can’t complain of being lonely you don’t make any effort to meet people.
#4394
A
until
B
when
C
once
D
though
Encourage your children to try new things, but try not to ___ them too hard.
#4508
A
draw
B
strike
C
rush
D
push
Recently, these companies have _____ some workers because of the drop in economy.
#4461
A
hired
B
dismissed
C
refused
D
employed
An early typewriter produced letters quickly and neatly; the typist, _____ couldn't see his work on his machine.
#4494
A
however
B
therefore
C
yet
D
although