--Will you __________ our pet dog while we're on vacation?

--Well, that ought to be no problem.
A. keep an eye of     B. keep an eye on
C. have an eye for     D. have an eye on

—Alice，you feed the bird today，　　　 ?

—But I fed it yesterday.?

A.do you　　　　 B.will you　　　 C.didn’t you　　　 D.don’t you?

The professor has received the letter ______ to give a lecture in Princenton Insitute.

　 A. being invited 　 B. to be invited

　 C. inviting 　 D. invited

------Look at the black clouds. It　　 soon.　

------Sure, if only we　　 out.

A. is raining; didn’t come B. is to rain; won’t start

C. will rain; haven’t started D. is going to rain; hadn’t come

In the office I never seem to have time until after 5：30 p.m.,　　 many people have gone home.

A.whose time　　 B.that　　　　　　 C.on which　 D.by which time

-Do you think we can get there on time?

-Yes，_______ the truck doesn’t break down.

　 A. even if 　 B. unless

　 C. until 　 D. so long as

—I wonder 　　　　 Bob is so dressed up today .

　 —He must be going to a job interview .

　 A．whether 　　 B．why 　　　　 C．what 　　　 D．how

In many countries around the world, parents give their babies ______ names so that they are different from others.

A. formal　 B. normal　 C. common　　 D. unusual

Mr. Wang was such a good teacher _______ the students love and respect.

A. who 　 　　B. whom　　　 C. that 　 　　　 D. as