ex1:change into the passive( S+be+ verb-ed/cot3)
1.she is cooking dinner in the kitchen at present 
2.are you learning english in the room now?
3. hoa usually feed the cat in the morning
4.binh did't buy flowers on her birthday party
5.do you water vegetables in the garden?
6.the boy is not playing chess at the moment
7.did the build the temple of literature under the dynasty ly nhan tong?
8. nga doesn't drink tea in the morning
9.did they buy that house last year?
10.tom mended the bicycle himself

change into passive
1.she is washing her clothes at the moment
her clothes.....
2.they don't usually  play games after school 
games.....
3.did he see that film at the cinema with his friends?
was.....
4.we are not buying oranges in the open-air market
oranges.....
5.do you osten eat noodles for breakfast?
are....
6.are the students studying maths now?
is...
7.binh wore the white shirt on his sister's weedin
the white shirt....
8. lan didn't hold a small party for her friend last sunday
a small party...
9. nhi is singing an english song in the room.
an english song...
10. does sh sometimes practice the piano?
is...
11. jenny gave the gifts to her mother on her birthday
the gifts....
12. did the teacher explain the lessons carefully?
were.....

bài tập về however and nevertheless
bài 1: liên kết các câu thành 1 câu hoàn chỉnh, sử dụng trạng từ liên kết.
1-the new film was interesting at cinema,I didn't enjoy it.
2- You look, the life is so short, a lot of people is wasting a lot of time
3- He could solve this problem quickly, he was so lazy to do it
4- Tom practiced hardly and he was tired, he didn't drink any water or ear some thing.
5-Susan is inteligent, she still can't understand this question
6- the tickets was so cheap, they couldn't sale all. people didn't wanna see that film more 
7- the villige's scenery is beautiful, there is little people come to visite
8- the hourse is very white and beauty, Anna doesn't wanna ride on it
9- Peter is so thirty, he doesn't wanna drink any sofi drink
10- these porks are so delicious, I am on diet