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（友情提示：鼠标拖选单词即时翻译）
从A、B、C、D四个选项中，选出可以填入空白处的正确答案。
1.—Shall I begin the lecture?
—I’m afraid we have to wait for a while. John is coming with a microphone.
— . I can do without the microphone.
A. I’m sorry B. Excuse me C.I beg your pardon D. Never mind
2.—Why were you not at the party?
—I an important meeting with some leaders in the conference hall.
A. attended B. had attended C. was attending D. have been attending
3.—What about supper yesterday?
—Well, most delicious one indeed.
A.不填；the B.不填；a C. the; the D. the; a
4. You must follow the directions exactly, and if you should become , you must take the time to go back again and read them over.
A. confused B. to be confused C. to confuse D. confusing