You’d better put a cloth over the salad to ______ the flies for the sake of heal

题型：不详难度：来源：

You’d better put a cloth over the salad to ______ the flies for the sake of health.

A．keep off

B．keep out

C．help out

D．hold out

答案

A

解析

句意: 为了健康起见，你最好用布盖上色拉，不让苍蝇靠近。keep off （to stop something touching or harming sbor sth）避开；不靠近，符合题意。keep out（to not go in a place, or to stop sb or sth from going into a place）关在门外；不准入内；help out 帮助某人摆脱困境等；hold out坚持；维持。