10题C,must have stoppedD,needn't have stopped

10题C,must have stoppedD,needn't have stopped 英语题 you are wet through ,you ___in the rain.A.must come B.must have caught C.may catch D.must have got caught 选择什么?为什么? He looks tired,he _______ too little sleep.A must have had B must have C must have been must have 12.Some metals are better conductors of electricity than others,______ means that the former have atoms containing more free electrons than latter.A.that B.this C.which D.it 13.If the earth suddenly ______ spinning,we would all fly off it.A.had stopp We must have this work______before 10:00.A finish B finished C to finish D finishing 47题的答案为a.have to,那请问为什么不能选c.must, He can't find his key.He ---------- them.A.must lost B.must have been lost C.must have lost Mary must ______lessons. A.has B.have c.be lt's c _that every effort must have a cause 一道英语单选 _____he have been chosen as captain of the football team?Yes,he_____.A.Can;must have B.Must;must have C.Can;must D.Must;must I can't find my umbrella.You __________it in the office.A.must have forgotten B.must have left C.must leave D.must forget Something ___ to him.( 05江西 22题 ) A.must happen B.should have happened C.could have happenSomething ___ to him.( 05江西 22题 ) A.must happen B.should have happened C.could have happened D.must have happened为什么不选A,情态动词+do和 I didn't hear the phone,I___out,A .must be B,must have gone C.must go 英语中,must have been 和 must have +过去分词,有什么区别如题 He will have to stay in hospital.That’s what he____a has done b must do c must be doing d must have done为什么C不对呢 must have been done must have done must have/ must have been的区别