参加社交活动应事先了解活动的内容和参加人员的情况，选择合乎场合气氛的服饰。()
Which of the following requires the least working time？
A. Part time jobs as salesclerks.
B. Part time jobs as babysitters.
C. Part time jobs at landscaping teams.
D. Part time jobs at National Saving Bank.
打电话时，要讲的话已说完，就应果断迅速地终止通话。()
Two pupils came to see me and I gave an apple to______when they sat down.
A. every one of them
B. every one
C. each
D. every
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