They were here yesterday?改为一般疑问句怎么改?以when开头的特殊疑问句呢?

They were here yesterday?改为一般疑问句怎么改?以when开头的特殊疑问句呢? "They were here yesterday".改为一般疑问句,特殊疑问句和否定句. they were here yesterday.怎样改疑问句? 1:将“They were here yesterday.”改成一般疑问句、问时间的疑问句和否定句. they must go home now的一般疑问句,否定句和以when开头的特殊疑问句 They came here yesterday evening.要求：改为一般疑问句 They were here just now.改为一般疑问句 he cleand his shoes一般疑问句,否定句,以when开头的特殊疑问句 一般疑问句的开头用哪些单词 特殊疑问句呢 We are boys、They were at table改为一般疑问句怎么改 用yesterday造句,改为一般疑问句,改为特殊疑问句 He played sports yesterday afternoon改为一般疑问句怎么改