_福建成考网

Which of the following is closest in meaning to the underlined expression “clocked on" in the last paragraph?

• A、Off duty.

• B、In be

• C、Under control.

• D、At work.

61．学生会打算举办一场旧书交换活动。请你给全校同学写一份通知，内容包括：

·旧书交换的好处（如培养节约习惯、增强环保意识等）；

·旧书交换活动的时间及地点；

·可以交换的旧书类别（如课本、小说等）；

·号召大家积极参与。

Paul's poor performance in the interview was a big （ ） to his mother, who had wanted her son to study at Harvard University.

• A、act
• B、blow
• C、sign
• D、air