By the time I got home, Gina and her sister ______ their project already.
A.finished B.have finished
C.had finished D.will finish
—I think you can ______ money by yourself to buy a present for your mother.
—OK. I’ll try. I’ll not let a penny waste.
A.spend B.save C.cost D.leave
—I think the man over there must be Bob.
—It ______ be him. He has gone to Paris.
A.can’t B.can C.may not D.mustn’t
Everyone knows that Diaoyu Island belongs ______ China.
A.with B.to C.in D.of
-----________________________________?
-----I’ve got a headache and a bad cold.
A.What’s wrong with you ?
B.What’s trouble with you?
C.What’s the matter with you?
D.Both A、B and C
------_______does your father surf the Internet?
------once a week.
A.How many times B.How long
C.How often D.How soon