1.My sisters makes cakes every morning
->Cakes is made by My sisters every morning
2.They don't drink coffee after breakfast
->Coffee isn't drunk after breakfast
3.He visited the Temple of Literature last year
->The Temple of Literature was visited last year
4.Did you plant trees in the school garden last school year?
->Were trees planted in the school garden last year
5.You should learn some Vietnamese before your trip to Ha Noi
->Some Vietnamese should be learnt before your trip to Ha Noi
6.My younger brother can't speak English
->English can't be spoken by younger brother
7.Nobody has cleaned the school yard for 3 days
->The school yard hasn't been cleaned for 3 days