people could use a time mechine for travelling to the future划线 travelling to the future.对划线部分提问是不是可以改成what do people use a time mechine for?

i could use a 英语完型题、In the past,people didn't use stamps.They had to pay money when they receied letters.Rowland Hill,a schoolmaster in England was the first 1 using stamps.He thought it 2 much easier for people to use 3 .They could go to the nearby 4 if more people in American could use a bus or train ,then the air would be cleaner 的意思 lt could't be used then.lt wasn't ___to use it.a.able b.allowed c.impossible d.possible ( )old people don't need is a gift they can't use.A.That B.When C.Why D.What people could use a time mechine for travelling to the future划线 travelling to the future.对划线部分提问是不是可以改成what do people use a time mechine for? -Could I use your dictionary?-Sorry,you_____.I'm using it.A.couldn't B.mustn't C.can't D.shouldn't presents(+should,shouldn't,must,mustn't)be things people use a lot用哪个情态动词? It could not be used then.It wasn't ___to use it.a.able b.allowed c.impossible d.possible could i use your pen ? A.yes ,you can B.yes,sure C.no,you can't 1.could I use your dictionary?A ,yes you could.B ,yes,I can.C ,Sorry.I am using it .D ,NO,you couldn't. people continue to use a lose Could I please use your computer A.Yes,I can.B.Yes,you can't.C.Sorry,but you can't.D.No,I can't. 英语完形填空 In the past,people didn’t use stamps.They had to pay money when they received lett1、①（单选题）A、to thinkB、thinkingC、to think ofD、think about2、/P>（单选题）A、could beB、will beC、isD、was3、③（单 People can't use a computer toA.buy thingsB.play games C.check eamilsD.learn to swim People won't use money.Everything will be free. 把“people won't use money改成一般疑问句 Don't ________the river.(pollute) People use trees ________furniture(pollute)