Trong các trường học, bệnh viện người ta thường trồng nhiều cây xanh ngoài việc tạo bóng mát nó còn có tác dụng gì? Tại sao?

Các câu hỏi liên quan

I. Change into the passive.(3 pts.) 1.She cleans the room twice a week ->........................................................................................... 2.We learn English at school. ->.......................................................................................... 3.They will cut the tree tomorrow. ->....................................................................................... 4.I plant two trees every year. ->........................................................................................ 5.He buys a beautiful flower. ->...................................................................................... 6. they painted their house green ->......................................................................................... II.Choose the best option.(4pts.) 1.It ......................raining an hour ago. ( starts/ started/ start/starting) 2.We..................Nga since Monday ( don’t see/ haven’t seen/ didn’t see) 3.Lan...................in the USA for 2 year ( is/ was/ has been/were) 4.Mai...................her room once a week. ( clean/ is cleaning/ cleans) 5.They ................in London in 2000 ( move/ have moved/ moved) 6.Would you mind........................me? ( help/ to help/ helping) 7.Do you mind if I .......................the door? ( close/ closed/ closing) 8.I always keep the windows open so as..........fresh air in. ( let/ to let/ letting) 10.Let’s.........................the VTV3. ( watching / to watch/ watch) 11 .The weather.........................hotter. ( is becoming/ become/ becomes) 12.It’s not very difficult..................English. (learn/ to learn/ learning/learned) 13.We can........a lot of things as plastic, metal, old paper. (recycle/ to recycle/ recycled) III. Choose and correct the unappropriate word or phrase(2pts.) 1. He is sleep in his room now. ......................................................................................................... A B C D 2. I come out of the hospital last Friday. ....................................................................................................... A B C D 3. Do you mind if I bought this book? ......................................................................................................... A B C D 4. The boys are get taller. ......................................................................................................... A B C D