问题描述：
——You should ___ it carefully before ___ a composition,Tom.——Don't worry.I will.
You should ___ it carefully before ___ a composition.
A.consider,write
B.considering,write
C.considering,writing
D.consider；writing
You should ___ it carefully before ___ a composition.
A.consider,write
B.considering,write
C.considering,writing
D.consider；writing
问题解答：
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