题目内容
He decided to give up _______ within two weeks.
A. smoke B. smoked
C. to smoke D. smoking
D
动词短语give up后加v-ing形式。

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题目内容
He decided to give up _______ within two weeks.
A. smoke B. smoked
C. to smoke D. smoking
D
动词短语give up后加v-ing形式。