16春《大学英语1(本科)》在线作业3
16春《大学英语1(本科)》在线作业3一、单选题（共 40 道试题，共 80 分。）
1.—I was worried about my maths, but Mr. Brown gave me an A. —______
A. Don’t worry about it.
B. Congratulations! That’s a difficult course.
C. Mr. Brown is very good.
D. Good luck to you!
正确答案：B
2.I didn’t hear the phone. I _______ asleep.
A. must be
B. should be
C. must have been
D. should have been
正确答案：C
3.It is the best _______ I have seen.
A. that
B. who
C. whom
D. which
正确答案：A
4.Did you notice the guy ______ head looked like a big potato?
A. who
B. which
C. whose
D. whom
正确答案：C
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