单项选择题He is one of those men who, I am sure, always do ______ best even in most trying circumstances.

A. them
B. his
C. their
D. one’s


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1.单项选择题But for their generous help, the experiment ______ completed so quickly.

A. shouldn’t be
B. couldn’t have been
C. wasn’t
D. hadn’t

3.单项选择题How much does the club cost a year

A. Three pounds.
B. Five pounds.
C. Twelve pounds.
D. Ten pounds.

5.单项选择题How old must members of the club be

A. Under ten.
B. Under thirteen.
C. Under sixteen.
D. Under twelve.

参考答案:temperature
9.单项选择题How much will it cost one person to attend the meeting

A. $10.
B. $8.
C. $18.
D. $80.