——My sister is a typist at a foreign firm.——I know this sort of work( )skill and speed.

问题描述:

——My sister is a typist at a foreign firm.——I know this sort of work( )skill and speed.
A、asks for B、calls for C、looks for D、waits for
为什选B不选A?

ask for 要求,请求,一般是人作主语,
call for 表示:需求,要求.
句意:我姐姐是一家外国企业的打字员.--我知道这样的工作【需要】技能和速度.