语法词汇练习 语法大全 语法详解 英语听力 
Costs have been reduced ___20% over past year.
#28077
A
in
B
on
C
to
D
by
下一题
推荐题目
Pleasant music is often played_____classes to make students refreshed and relaxed for a while.
#28721
A
between
B
among
C
over
D
after
Whatever you do, we are always ________ your side.
#27143
A
on
B
at
C
for
D
with
I’m not ill. __________, I ’m very healthy.                       
#27001
A
However
B
On the contrary
C
Thus
D
Instead of
They made a scientific approach ______ the subject.
#26150
A
at
B
in
C
to
D
of
The house is lighted ____ electric light.
#28871
A
by
B
to
C
in
D
with