He took off his coat all his pockets but couldn’t find his key.A. searchedB. searching

问题补充：

He took off his coat, all his pockets, but couldn’t find his key.

A. searched

B. searching

C. to search

D. searches

答案：

(答案→)A. searched

B. searching

C. to search

D. searches

解析：考查动词的用法。句意“他脱下外套，翻遍了所有的口袋，但是找不到钥匙。”几个连续的、表示过去的动作，只在最后一个动作前加and/but。故本题填searched。故选A。