” I locked myself out of my apartment. I didn’t know what to do”
-“ You _____ your roommate”




A.need have called
B.could have called
C.would have called
D.must have called

Mark is nearsighted. He __________ glasses ever since he was ten years old




A.should have worn
B.must wear
C.need wear
D.has had to we

__________ migrate long distances is well documented.




A.That it is birds
B.That birds
C.Birds that
D.It is that birds

________(4)




A.who
B.whom
C.whose
D.which

_______(9)




A.successfully
B.successful
C.success
D.susceed

I don't have a computer.




A.I wish I have a computer.
B.I wish I had a computer.
C.I wish I had had a computer.
D.I wish I would have had a computer.

He is good at studying Chinese, ________________?




A.is he
B.isn't he
C.was he
D.wasn't he

It was not until the end of prehistoric times that the first wheeled vehicles appearing.




A.not until the end
B.prehistoric
C.the first
D.appearing

A.reign
B.reindeer
C.protein
D.vein

A.exact
B.examine
C.eleven
D.elephant