to the office earlier that day, _______ the 7:30 train from Paddington

think he will do me a favor—As far as I know, he is the last one to help others. He _______ be prepared to give you a hand, though.

found the raincoat where I had ______ it.

下列词语中没有错别字的一组是

People should stop pouring dirty water into thelake.— _______. It will cause pollution.