1.She can speak English 

⇒English can be spoken(Can + V → Can + be + V3/V-ed.)

2.Taxis and buses are taking tourists around the city

⇒Tourists are being talked around the city by taxis and buses(Hiện tại tiếp diễn:S + am/is/are + being + P2)

4.He hasn't finished his homework yet

⇒His homework hasn't been finished yet(Hiện tại hoàn thành:S + have/has + been + P2)

5.Mr Brown doesn't take his children to the corcus to day

⇒His children isn't taken by Mr Brown to the corcus to day(Hiện tại đơn:S + am/is/are + P2)

3.Did he trans late this novel in to Vietnamese last year

⇒Was this novel translated in to Vietnamese last year?(Was/were + S' + V3/-ed + by + …?)