--Can I smoke here?
--Sorry, we don’t allow __________ here.
A.people smoke B.to smoke C.people smoking D.smoking
— Is it good to look up every new word when I come across it in reading?
—No,you _____,because you are likely to guess the meaning from the context,
A.don't have to B.shouldn't C.can't D.mustn't
---- Have you heard that Tom, as well as his parents, _____ moved to Beijing?
---- Really? No _____ I haven’t seen him for a long time.
A.have; doubt B.has; wonder
C.have; wonder D.has; choice
—I drove to Zhuhai for the air show last week..
—Is that ________ you had a few days off ?
A.where B.when C.what D.why
What is even more important is______ the earth cooled down, water began to appear on its surface.
A.that B.that as C.which D.which as
His idea was such a good one ______ we all agreed to use it.
A.as B.that C.so D.but