用to或for填空:The visitor is asking a policeman ( ) help.
问题描述:
用to或for填空:The visitor is asking a policeman ( ) help.
答
for.ask sb for sth是固定短语,意思是请求某人做什么.
用to或for填空:The visitor is asking a policeman ( ) help.
for.ask sb for sth是固定短语,意思是请求某人做什么.