tham khảo

Khi ngủ dưới tán cây to vào ban đêm thì cảm thấy khó thở do ban đêm cây không quang hợp mà hô hấp. Quá trình này của cây hấp thụ khí oxi trong không khí và thải ra khí cacbonic => người sẽ cảm thấy khó thở do thiếu oxi để thở.

1 Tickets are sold at the gate of the tourist site.

2 A lot of flowers are grown in Da lat.

3.The Hung Kings' Temple is visited by thousands of people every day

4Many beautiful Chm Towers can be seen by tourists in Binh Dinh province.

5Many kinds of goods can be bought (by tourists) in Ben Thanh Market.

Ta tìm được BCNN (8; 12; 15) = 120. Từ đó ta có:

BC (8; 12; 15) = {0; 120; 240;... }

a. We have classes from twelve-fifteen to half past four.

b How many floors does your school have?

1 The man standing near the window is Nam.

 2.A car made in Japan was very expensive.

3. The film shown on TV last night won the first prize in the film festival last year.

1D 2C 3A 4B 5C 6D 7B 8C 9D 10A 11B 12B 13D 14B 15A

aThe bottles are cut into the small pieces.

b. These shirts are made by Kha for his dad. 

c. The poems were written by him in 1990.       

  e.Stamps and books have been collected by them . 

f. The small glass pieces will be melted by me.

g. He was told to stay home for three days.

h.  She is said to be the best student in the class.

1. Where's John? He _____________is listening_______ (listen) to a new CD in his room.

2. Don't forget to take your umbrella with you to London. You know it always _____________rains______ (rain) in England.

3. Jean ___works ______ (work) hard all day but she ______isn't working ____ (not work) at the moment.

4. Look! That boy _______is running__________ (run) after the bus. He______wants _____ (want) to catch it.

5. He _____speaks___ (speak) German so well because he _comes_______ (come) from Germany.

6. Shh! The boss ____is coming____ (come). We ____are meeting_____ (meet) him in an hour and nothing is ready!

7. ______Do__you usually ___do_____ (go) away for Christmas or_____do___ you ______stay__ (stay) at home?

8. She _____________is holding_____ (hold) some roses. They______smell______ (smell) lovely.

9. Oh no! Look! It ______is snowing____________ (snow) again. It always____________snows____ (snow) in this country.

10. Mary ________swims ____ (swim) very well, but she _____doesn't run_______ (not run) very fast.