10. His car (repair) ………………………………………… at this time yesterday.
11. This room (clean)……………………………………… by my sister every day.
12. ………….…..these toys (make)………………………………… in China?
13. These story books (write) ……………………….….……… by To Hoai in 1956.
14. Nam (award)………………………… a gold medal in the chess tournament last week.
15. Nothing (do)…………………………..…….. since Peter bought a computer last week.
16. His new novel (publish) ………………..………….……………in two months.
17. Nam doesn’t his motorbike today. It (repair) ………………………………………..right now.
18. A new supermarket (build)…………………………….…..…… in the neighborhood recently.
19. . If we recycle more, we (help) .. ………………………… the earth.
20. Factories (not dump)… ………………. waste into the rivers if the government fines them heavy.
21. If people travel to work by bus, there (be) ………………….…….. fewer cars fumes.
22. We will save thousands of trees if we (not waste)……………………….. paper.
23. If we use waste water carefully, more people (have)………………… fresh water.
24. If you (be)……………..…. the president, what ………………..you (do)……………….?
25. They get sick so often. If they (exercise)…………… more, they (be)……….. healthier.
26. If I (have)……………… one million US dollars, I (build)…………….. more parks in our city.
27. Ngoc’s mother is unhappy. If Ngoc (tidy)…….. her room every day, her mother (not be) …… so upse
– It là chủ ngữ số ít -> dùng tobe là is