一单项选择(本大题有20小题，每小题1分，共20分)
（ ）1 .Vienna is ______old city ______the river Danube.
A、the; in B、an; on C、a; at D、an; of
（ ）2. —Excuse me, whose Japanese book is this?
—It _______be Tom’s. In our class, only he is studying Japanese.
A. may B. can’t C. would D.might
（ ）3.-— He was_______ tired_______ he fell asleep as soon as he lay down.
-— Oh, we can go out and let him have a good rest.
A. too, to B. enough, to C. such, that D. so, that
（ ）4.There are about ____ people in the hall.
A. two hundreds of B.two hundreds C. hundreds of D. two hundred
