The doctor urged people who smoke to ______ the habit.
A.abandon B.acknowledge C.accustom D.achieve
I have bought the same dress ________ she is wearing.
A.as B.that C.which D.than
This is the biggest lab__________we have ever built in our university.
A.which B.what C.that D.Where
Please pass me the dictionary _______cover is black.
A. which B. its C. whose D. which of
Can you solve such problems___raised by the audience?
A.what were B.as were C.that were D.which were
He has left Beijing,___a meeting is to be held.
A.when B.where C.as D.which
