一、选择填空（共25小题；每小题1分；满分25分）
A)单项填空 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
1._______ young man beside our headmaster comes from _______university in Nanjing.
A. A; an B. An; a C. The; a D. The; an
2. My headache is killing me. I _______it _______away. But now it's getting worse.
A. think; is going B. thought; was going
C. have thought; is going D. had thought; was going
3. — Sorry, what did you say just now?
— I asked_______．
A. when did Mr. Brown leave B. where Mr. Brown has been
C. whom will Mr. Brown go with D. why Mr. Brown went to the station
