问题

I will put the book________you placed it and make a mark at the place________I put it.
A:where;at which
B:at which;at which
C:where;which/T
D:at which;where
B:at which;at which
C:where;which/T
D:at which;where
正确答案是:
同类题型
There are many other ways to advertise _______ broadcast advertisements on radio and TV
This pencil is ______ that one
________ the last flight You have to stay here for another night
A journey by train is more ______than by coach.
Can you work out the problem?—I can’t ________ you explain how to do it.[ ]