In summer， food will go bad quickly ________ we put it into a fridge．（ ）
| A． |
if |
B． |
unless |
C． |
as soon as |
D． |
while |
相关试题
﹣What do you like？
﹣I like playing tennis and running．（ ）
A．subjectsB．musicC．sports
﹣The box is heavy．Could you please help me carry it？
﹣______!（ ）
| A． |
My pleasure |
B． |
You are kidding |
C． |
Good idea |
﹣Look!What's on the ground？
﹣Oh，it's my sweater．Please ______ for me．（ ）
| A． |
pick up it |
B． |
pick it up |
C． |
pick it out |
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