You may use room as you like _______ you clean it up afterwards
A. so far as
B. so long as
C. in case
D. even if
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Mary made coffee ________ her guests were finishing their meal.
A. so that
B. although
C. while
D. as if
The little boy won’t go to sleep _____ his mother tells him a story.
A. or
B. unless
C. but
D. whether
She had just finished her homework________her mother asked her to practise playing the piano yesterday.
A. when
B. While
C. after
D. since
—I may go to the market this afternoon.—Could you please buy some fruit for me________you are there?
A. since
B. If
C. while
D. as