---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
—Mr. Black, may I leave now?—Well, if your work ________, you can go home.
#44700
A
finishes
B
is finished
C
has finished
D
will be finished
You have to stay behind if your homework before five o'clock.
#44375
A
wasn’t done
B
hasn’t done
C
doesn't do
D
isn't done
—Oh, this is really an old building.—Do you know when it ?
#44645
A
has built
B
is built
C
was built
D
will be built
— At present, one of the best ways to study is working in groups.—More chances _______ to students to learn from each other.
#44448
A
offer
B
is offered
C
are offered
D
have offered
—It’s difficult to get to the other side of the river.—I think a bridge over the river.
#44615
A
should be built
B
should build
C
will build
D
has built