1)Turn these sentences into the passive voice a)This is the second time they have writte to us about this b)Mr.Smith has taught us French for two year c)They didn't look after the children properly d)We import these machines from the USA e)Nobody swept thí street last week Nhờ các bác giỏi Anh giúp mik vs ạ :)) cảm ơn nhìu :>

a. This is the second time they have written to us about this.

=>This is the second time this has been written to us.

b.Mr.Smith has taught us French for 2 years.

=>We have been taught French by Mr Smith for 2 years

c.They didn't look after the children properly.

=>The children weren't looked after properly.

d.We import these machines from the USA

=> These machines are imported from the USA.

e.Nobody swept this street last week.

=>This street wasn't swept last week