professor li,many students want to see you.shall they wait here or outside!

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• professor li,many students want to see you.shall they wait here or outside!
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• Professor Smith,some students want to have a talk with you.._____they wait here or outside?Professor Smith,some students want to have a talk with you._____they wait here or outside?A.ShallB.WillC.WouldD.Must
• professor li,many students want to see you.shall they wait here or outside!能用will代替shall吗?我只能从语感上判断应该是shall.但有一说是shall用于第一人称了嘛!这儿是they,为何用shall,不用will.明天要用
• Professor Wang,many students want to see you._____they wait here or outside?（d）A.Do B.Are C.Will D.Shall
• 有关情态动词的：1.Mr Black ,many customers want to see you._____they wait here or outside?A.will B.shall C.can Dwould2.The woman you saw in the supermarker____be Mary.She is in hospital naw.A.can't B.needn't C.shouldn't D.mustn't3.You_____ be sleepy already -you went to bed early last night.A.mustn't B.can't C.wouldn't D.needn't4.Could I yse yout computer to type a letter You____have my computer if you don't take good care of it.A.shall not B.might not C.need
• professor li,many students want to see you.shall they wait here or outside!
• professor li,many students want to see you.shall they wait here or outside!
• Mr.White ,many customers want to see you._Shall they wait here or outside?怎么用shall?
• Professor Wang,many students want to see you._____they wait here or outside?（d）
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• 棱镜光谱仪和光栅光谱仪的光谱有何不同?