-Good morning, Mr. Lee's office.
-Good morning. I'd like to make an appointment _________ next Wednesday afternoon.
| A． |
for |
B． |
on |
C． |
in |
D． |
at |
The number of medical schools reached 18 in the early 1990s and ______ around that level ever since．（ ）
| A． |
are remaining |
B． |
have remained |
| C． |
is remaining |
D． |
has remained |
I never worried about my son while I was away because my mother ______ him．（ ）
| A． |
drank a toast to |
B． |
played a joke on |
| C． |
kept an eye on |
D． |
made an apology to |
According to Professor Johnson，we don't have to read the book if we don't want to，as it is ______．（ ）
| A． |
worthwhile |
B． |
necessary |
C． |
optional |
D． |
serious |
Dr．Rowan，______ secretary resigned two weeks ago，has had to do all his own typing．（ ）
| A． |
whose |
B． |
of whom |
C． |
of which |
D． |
which |
﹣Shall I order a taxi for Sarah to go to the airport tonight？
﹣______．I'll drive her there．（ ）
| A． |
Have a try |
B． |
Don't mention it |
| C． |
Don't bother |
D． |
Go ahead |