This was at a college-level with hungry college student.

This was at a college-level with hungry college student. this was at a time when there was no radios...句子成分分析 He was riding a bike at this time yesterday.at能不能删掉?为什么？不删有没有错？ If this was a Lana was doing a homework p_____ at home this time yesterday.(注意:句中有一个a) Mark was a student at this university from 1999 to 2003,____he studied very hard, He was reading a book at this time yesterday.改为被动语态 This photo was taken __a cheap camera.A.with B.by C.in D.at ( )he at this school last year?A Did B Does C Was D Is -----he---- at this school last team A.Did,studyB.Has,studied C.Was,studyD.Did,studied we had a wonderful dinner at this restaurant.the food was d______ This car was sold ____a surprised price.A.at B.of C.by D.out It was at this shop__i came across the picture.A which Bwhat Cwhere Dthat where()you this morning?-I()at home怎么填?A.were was B.are amC.do am D.are was be mad at 后面的动词是什么时态的?还有Dave was doing a homework p______ at this time yesterday. Not only ____ an exploror but also he was a great thinker ____ this thirties.( ) A．he was… inB．was he… at C．was he… in D．he was… at Was it in 1998,when he was still at middle school,______ this boy became an expert at computer?A.which B.where C.that D.when This is my new watch.It was a present ( )my wife.A.at B.to C.from