mới làm có 1 bài mà?

2 bài?

a) 
\(=\left(\dfrac{7}{19}+\dfrac{7}{19}\right) . \left(\dfrac{1}{3}+\dfrac{2}{3}\right)=\dfrac{14}{19}\)
câu b mình ko thấy hết đề

cập nhật ảnh lên

câu 5 separate hay separated vậy a?

e như gục ngã :(

Supply the correct form of the words in parentheses
1. Mr. Long has an_impressive_ collection of stamps. (impress)
2. We like the beauty of the city and the_friendliness_ of the people. (friend)
3. Read these_instructions_ carefully before taking this medicine. (instruct)
4. Swimming is_compulsory_ at my school. (compel)
5. I try to keep meat_separated_ from other food in the fridge. (separation)

1. is
2. will
3. likes
4. said
5. are
6. can
7. is
8. costs
9. said
10. had just got

copy paste câu hỏi zậy đó

hảo câu hỏi :)