What does the man think about the menu of options？
A. Its meaning isn't ambiguous.
B. It is far from clear.
C. It is satisfactory.
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What will the operator do next？
A. Make an official complaint.
B. Improve the menu of options.
C. Make a note of the man’s complaint.
Why did the man watch the video？
A. It was required by Professor Stephen.
B. He wanted to learn about heart attacks.
C. He had to take part in a discussion.
______school policy, the students had a holiday between Christmas and the New Year.
A. On behalf of
B. With regard to
C. In line with
D. In case of
The businessmen discussed the contract______but never actually signed anything.
A. at length
B. at sea
C. at random
D. a will
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