Ok,when I want to smoke,I__smoke.A.can't B.couldn't C.am not able to D.was not abnle to

Ok,when I want to smoke,I__smoke.A.can't B.couldn't C.am not able to D.was not abnle to
Ok,when I want to smoke,I__smoke.A.can't B.couldn't C.am not able to D.was not abnle to

Ok,when I want to smoke,I__smoke.A.can't B.couldn't C.am not able to D.was not abnle to
A
这一句的意思是：当我想吸烟时,却不能吸烟.
B、D 时态是过去时,根据when I want to smoke 判断此句为现在时,所以B、D应排除
C 是短语be able to 的否定形式,be able to 是指主观上有这种能力,指有能力做某事.can 是指客观上你能这么做,或被允许这么做,本句很显然是说我想吸烟,却不能吸,可能不被允许或者客观条件不可以,所以选A.

B

A