Tìm lỗi sai và sửa lại :
1. Playing computer games are one of the most popular after-school activites of students now.
2. Peter's teacher asked his mother pay more attention to his study at home.
3. These colour television are too expensive for we to buy at this time.
4. The shopkeeper asked the boys don't lean their against his window.
5. A farmer needs feeding the animals everyt day of the year.

Active or passive ? Put the verbs into the correct form :
1. Every time I print a document, the printer (break) down.
2."Is Thanh's house still for sale ?" - "No, it (sell) since last month"
3. The application form should (send) today so that I (arrive) the next day.
4. How ....... cake (make) ?
5."Who (invent) the microphone ?" - "It (invent) by D.E. Hughes in 1878.
6. The professor (give) a speech on history at the moment.
7. A research (do) by the professor for three years.
8. An English-speaking club (hold) in our school next year.
9. Flowers (cut) in the morning to sell in the market.
10. The printer (break) down yesterday, but now it's OK. It (work) again; it (repair)

Make sentences using the words and phrases given :
1. How/can/you/reduce/waste/house ?
2. What/happen/rubbish/your/area ?
3. Most/people/not/know/where/their/plastic waste/go.
4. Noise pollution/occur/because/there/too many/loud/sounds/environment.
5. Many/animals/eat/litter/become/sick/because/people/throw/it/ground.
6. People/will/more/aware of/protect/environment/if/there/more/warnings/about/danger of pollution.
7. If/people/ride/bikes/work/they/keep/air/less polluted.

Put the verbs in brackets into the correct form to complete the sentences :
1. If you (not read) these articles, you (not know) the facts about water pollution.
2. If I (be) the president, I (remove) all the factories out of the city.
3. Your brother (have) hearing problem if he (listen) to too loud music.
4. Tell him about this story if you (see) him.
5. If he (cook) the meal himself, help him.

Hoàn thành câu với những từ đã cho :
1, Could/tell/how/get/police station/please ?
2, How/much/cost/mail/letter/USA ?
3, In/future/we/less work/more money/spend.
4, Brother/engineer/and/work/factory/suburb/capital.
5, Eat/and/talk/friends/be/most common ways/ relax/recess/many countries.
6, His health/getting/better/better.
7, Your hat/cheap/my hat.
8, I/enjoy/watch TV/my family/every night.
9, Nam/love/collect stamps/and/have/hundreds/stamps/his collection.
10, He/usually/work/morning/so/he/free/afternoon

Điền đúng dạng thức động từ : V-ing / To - infinitive / Bare - ifninitive
1, A big dog made a little girl ....... ( cry )
2, I didn't like her so I turned left to avoid (meet) ....... her.
3, Have you finished ( read ) ........ the book I lent you last week ?
4, My mother is busy ( cook ) ....... every day.
5, We are gald ( tell ) ......... you that we are going to have interesting activities.
6, Nobody has offered ( buy ) ......... the house next door, so I think they're going to lower the price.
7, The city council agreed ( accept ) ............. the architect's proposed design for a new parking garage.
8, John was trying ( unlock ) ............ the door with the wrong key.
9, I always try ( pay ) .......... my bills on time, but sometimes I am a little late.
10, Let's hurry! We must finish ( paint ) ........ the office before 3:00 this afternoon.
11, She failed ( return ) ............. the book to the libary on time.
12, He is too ill ( eat ) ............ anything.