a) 7,2 x 94,3 + 7,2 x 4,7 + 7,2

=7,2 x(94,3+4,7+1)

=7,2x100

=720

b)\(\dfrac{7}{9}\times\dfrac{2}{3}+\dfrac{7}{9}\times\dfrac{1}{3}=\dfrac{7}{9}\times\left(\dfrac{2}{3}+\dfrac{1}{3}\right)=\dfrac{7}{9}\times1=\dfrac{7}{9}\)

8,06

1.have you studied/have studied

2.have been

3.listened

4.made

5.do you think you study

6.leaves

7.has he called

8.have had

go

hum được học on mà lắm bài nên ít tg làm 

1. '' Could you explain this question for me, Tom ? ''. Hoa asked

Hoa asked Tom if He could explain that question for her.

2. '' You should do morning exercise, Nam '' . The doctor said

The doctor said Nam he should do morning exercise.

Ở việt nam là +7

=>giờ gốc là 7-7=0 hay 24 giờ

1. Her pen is not the same as mine 

=> Her pen is different from mine.

2. We lived in this city in 1997

=> We have lived in this city in 1997

3. My room isn't as large as her room

=> Her room is larger than my room

4. His schoolbag is different from my schoolbag

=> My schoolbag isn't the same as his one.

5. He last saw her 5 months ago 

=> He hasn't seen her for 5 months.

6. When did you start learning English

=> How long have you started learning English?

a) Tuy hạn hán kéo dài nhưng nông dân vẫn có những vụ mùa tốt

b) Dù các cô cảm thấy vất vả nhưng các cô vẫn miệt mài trên đồng ruộng.

đất khách quê người