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HV
9 tháng 12 2021
1 acceptance
2 clockwise
3 obligatory
4 society
5 commemoration
6 invaders
7 joyful
8 cruelty
9 legendary
10 generously
DT
Đỗ Thanh Hải
CTVVIP
9 tháng 10 2021
1 more convenient
2 younger
3 taller
4 smarter
5 more exciting
6 less
7 worse
8 cleverer
9 more expensive
10 more modern
11 more skillful
12 more peaceful
13 friendlier
14 more valuable
15 more suitable
16 more confident
17 more exciting
18 prettier
19 better
20 the worst
TK
3
5 tháng 8 2021
a,\(3xy+6x^2=3x\left(y+2x\right)\)
b,\(-4xy^2+8x^2y=-4xy\left(y-2x\right)\)
c,\(4\left(x+y\right)+x^2+xy=4\left(x+y\right)+x\left(x+y\right)\)\(=\left(4+x\right)\left(x+y\right)\)
5 tháng 8 2021
d,\(4x^2-9y^2=\left(2x\right)^2-\left(3y\right)^2=\left(2x-3y\right)\left(2x+3y\right)\)
e,\(25x^2-\dfrac{1}{4}=\left(5x\right)^2-\left(\dfrac{1}{2}\right)^2=\left(5x-\dfrac{1}{2}\right)\left(5x+\dfrac{1}{2}\right)\)
DT
Đỗ Thanh Hải
CTVVIP
5 tháng 10 2021
1 old enough to get married
2 was too hot for me to drink
3 good enough for them to go for a walk
4 is so hard that he asks his friend for some help
5 an easy question that he can answer it
6 is a lot of information on the newspapers
7 should buy the furniture online to save time
8 Sue left the house, she had checked that she had lost her key
9 Mark was parking his car, he noticed the tire was flat
10 Kate had take 2 aspirins, she felt a lot better
TK
0
DT
Đỗ Thanh Hải
CTVVIP
1 tháng 8 2021
Bài 1
1 has been examining
3 has just finished
3 has taught
4 has been crying
5 has been cleaning
7 has done
8 has just broken
Bài 2
2 was making
3 was looking
4 was reading
5 were studying
1. Who did he go on holiday with ?
2. What did she do ?
3.Whose dictionary did you borrow ?
4. Who gave some money to Mike ?
5. Who helped John with his homework yesterday ?
6. Where did she leave her suitcase ?
7. When did she last ride a bike ?
8. How many kilo of cheese did you buy ?
9. What did he do two day ago ?
10. Who did you go to the cinema with ?
11. How many kilo of oranges did you buy ?
12. Who did John write about ?
13. What did she make for her mother ?