1You can’t __ water up withoil.

(2017· 新课标全国卷II完形改编) Just last year, I was conducting a workshop when someone knocked at the classroom door. A woman the interruption and handed me an envelope.

They ________the train until it disappeared in the distance.[ ]

You don’t know me, do you— ________. Don’t you remember ________ the mountain with us last weekend

When did the meeting begin—At four o’clock．It ______ for 15 minutes．