21. They could not go to the theater together because his free time never ______ with hers.
A. collide B. comply C. coincide D. cope
collide 碰撞，相沖撞
collision 沖突
bump 撞擊
bump into 邂逅，偶然遇到
comply (with) 遵守（法律法規(guī)）
adhere (to) 堅持，遵守，粘著
conform (to) 符合，遵守（法律法規(guī)）
cope (with) 處理
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