Mary made coffee ________ her guests were finishing their meal.[ ]A. so that

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Mary made coffee ________ her guests were finishing their meal.[     ]
A. so that
B. although
C. while
D. as if

答案

举一反三

The little boy won"t go to sleep ________ his mother tells him a story.[     ]
A. or
B. unless
C. but
D. whether

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The school rules state that no child shall be allowed out of the school during the day, ________
accompanied by an adult.[     ]
A. once
B. when
C. if
D. unless

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________ our manager objects to Tom"s joining the club, we shall accept him as a member.[     ]
A. Until
B. Unless
C. If
D. After

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________ they decide which college to go to, students should research the admission procedures.[     ]
A. As
B. While
C. Until
D. Once

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John thinks it won"t be long ________ he is ready for his new job.[     ]
A. when
B. after
C. before
D. since

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