---Where’s your mother? ---Oh, she ______ Shanghai on business.
#44748
A
have been to
B
have gone to
C
has been to
D
has gone to
推荐题目
The boss made him work 14 hours a day.That means,he _______ work 14 hours a day.
#44974
A
was made
B
made
C
was making
D
was made to
Students should ______ to choose their own uniforms.
#44721
A
allow
B
allowed
C
are allowed
D
be allowed
Waste paper mustn’t _______. We should keep our environment clean.
#44420
A
throw away
B
thrown away
C
be thrown away
D
been thrown away