The students must have finished his homework the day before yesterday,______ he?

The elder brother must know,ha ha,sister you All the students must wear u____ at our school. teachers must take care of the students改为被动语态 The students must keep their classroom ____.to clean cleaningcleancleans All the students must c __their attention on their work what must the students do in English lessons 翻译 The students must finish their homework（ 独自地 ） 43.Your trousers ______dirty,you must have______ washed.A.is it B.are it C.are them D.is them44.The Olympic games ______held every four ______.A.is years B.are years C.is year D.are year45.He is the oly one of the students who______elected.A.are B.ha He is one of the students who（ ）invited to the meeting.A have been B Ha I found this book when Icame to the classroom.It must must have been left by one the students 改错1.The teacher looked angry at the students 2.They must have arrived till now The students must have finished his homework the day before yesterday,______ he? students,the rules,follow,the,must,school,in连词成句 students,the rules,follow,the,must,school,in连词成句 The students must keep the classroom ____everyday.A.cleans B.clean C.cleaning D.to clean International students must submit the Common Application International Supplement.那么,the Common Application International Supplement是什么? the speech must be wonderful.the students ___(clap)their hands again The speech must be wonderful.The students ____ (clap)their hands again.