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1.
There are both many good things and many potential dangers in social network
It's important for parents to teach their children how to use social media wisely
Social network is the start of bad things like cyberbullying
2.
A recent report has said that many teenagers have contacted online with strangers and it makes them feel scared or uncomfortable.
Others receive onine advertising that is inapproriate for their age.
It is important that parents should be aware of what children are doing online.
Parents should make their children understand that they respect children's privacy.
However, parents want to make sure that their children are safe.
Exericse V:
31. B
32.C
33.C
34.A
35.D
Exercise VI:
36. A
37. D
38. C
39. C
40. C
Exercise VIIz;
41. D. time enough \(\rightarrow\)enough time
42. C. rises \(\rightarrow\) is rising
43. C. isn't telling \(\rightarrow\) don't tell
44. C. with \(\rightarrow\) \(\varnothing\)
45. C. taller \(\rightarrow\) tallest
Exercise VIII"
46.D
47.A
48.C
49.B
50.A
1 rides
2. collect
3. didn't go
4. bought
5. haven't plan
6. will go
7. have learnt
8. Has Peter visited
9. listening
10. didn't study
1 rides
2 collect
3 did not go
4 Bought
5 have not planned
6 will go
7 have learnt
8 Did Peter and his parents visit
9 listening
10 did not study
Từng tranh theo từ trên xuống và qua rồi đó bạn ^^ hay để mình chụp từng bài gửi nha
cau 4 thieu than a tourist does cai cho revision for test
5. The children liked to swim in the rain.
= The children enjoyed swimming in the rain.
6. How carefully he drives
= What a carefull driver.
7. We must cover electrical sockets because children try to put anything into them.
= Electrical sockets must be cover because the children try to put anything into them.
8.a) introduce
b) before
c) doing
d) myself
e) Excuse
f) meet
g) Let
11. The ice isn't thick enough for us to walk on
12. The tea isn't strong enough to keep us awake
13. This novel is interesting enough for us to read
14. We think you are strong enough to lift this table
15. This kind of rubber is good enough for us to make tires for car