They were having a meeting in the lecture hall when the door__open.A.forced B.burst C.broke D.tore请问这题该怎么写?说一下四个词的用法吧..

They were (having a piano lesson)对括号部分提问 They were having a good time at the party last night.改为感叹句 用a,about having party excited were idea they surprise the of连词成句 they were not having a meeting when l was there 改被动 They___tired so they stopped___a rest.A.are,have B.were,have C.were,to have D.are,having they ___supper when we___into the rooma.are having.wentb.were having..goc.were having...wentd.are having...go They _____ supper when we _____ into the room.A. are having…went B. were having…go C. were having…went D. are having…go为什么不选D they a meeting form 2 to 4 yesterday afternoon A had had Bwould have C were having D had They were having a tea party in the garden.对这个句They were having a tea party in the garden.对这个句子提问两次,一个一般疑问句,一个特殊疑问句,正确率高,完整的有好评 they were having an important meeting改为否定句 yestoday evening they were having their supper a guest came to visit them suddenlyA.as B.while C.when Duntil They are having ____ discussion about whether the two countries were at __the timethe/a/不填 All flights ________ because of the terrible weather,they had to go there by train.A.having been canceledB.had been canceledC.having canceledD.were canceled 要详解 All flights ______ because of the storm,they decided to take the train.a.having cancelled b.were cancelled c.have been cancelled d.having been cancelled All buses ______ because of the heavy snow,they had to to there on foot.a、had been canceledb、having been canceledc、were canceledd、having canceled Having lived in France for many years,they still enjoyed the foods__in their homelandA.which were used to havingB.they were used to havingC.which used to haveD.they were used to have为什么选B不选A? 1.Should he is allowed to go to school2.I'm never allowed to stay up to 11:00 pm.3.I would buy a pc ,but my parents not agree.4.Some students were so sleeping that they fell asleep when they were having a class5.Sometimes hobbies can get get on the w while they were having a meeting ,3 while they were having awhile they were having a meeting ,3 psychiateists had an interesting. people are always coming to v___ us with their guilt and fears one said ,but we have no one to talk about our p___ Si