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Những câu hỏi liên quan
DT
Đỗ Thanh Hải
CTVVIP
20 tháng 7 2021
7 B
8 D
9 D
10 B
11 A
12 D
13 C
14 B
15 A
16 B
17 A
18 A
19 B
20 D
21 B
22 C
23 A
24 B
25 B
26 B
27 D
28 C
29 C
30 D
DT
Đỗ Thanh Hải
CTVVIP
20 tháng 7 2021
8 A
9 A
10 A
11 A
12 A
13 A
14 A
15 A
16 D
17 C
18 C
19 A
20 D
21 A
22 A
23 B
24 C
25 A
Ex7
1 C
2 A
3 A
4 C
5 A
6 A
7 D
8 A
9 A
10 B
11 A
12 A
12 C
14 C
15 A
16 A
17 B
18 C
19 B
20 A
21 A
22 A
23 A
24 B
25 D
Ex8
1 C
2 A
3 B
4 D
5 B
6 C
21 tháng 7 2021
sau đăng nhớ tách bài ra nhé
Ex 1
1 am
2 doesn't study
3 aren't
4 Does he have
5 have
6 Does she live
7 are
8 Does my sister work
9 Do dogs like
10 lives
11 rains
12 fly
13 doesn't fry
14 closes
15 tries - don't think
16 passes
17 is - watch
18 has
19 leaves
20 has to
21 play
22 drinks
23 does she speak
24 are spoken
25 are not polished
26 rains
27 arrives
28 starts
29 come
30 does he do
Ex 2
1 is living
2 isn't having
3 am studying
4 is designing
5 is reading
6 is studying - is listening
7 are running
8 are having
9 is playing
10 are watching
11 is staying
12 is always forgetting
13 is being washed
14 is riding
15 isn't being taken
16 are hanging
Ex 3
1 is listening
2 rains
3 works - isn't working
4 is running - wants
5 speaks - comes
6 is coming- are meeting
7 Do - go - do - stay
8 is holding - smell
9 is snowing - snows
10 swims - doesn't run
11 Do - enjoy - am having
12 don't know
13 are - doing - am staying
14 think - looks
15 live- am staying
16 am driving
17 are lying
18 listen - are - listening
19 doesn't understand - are talking
20 does - weigh - looks
Ex 4
1 stayed
2 didn't go
3 had
4 Was my ...
5 visited
6 felt
7 bought
8 Did Lan and Mai see
9 Did Trung eat
10 Did they talk
11 returned
12 didn't think
13 went
14 drove
15 arrived - was
16 had
17 came
18 told
19 walked
20 visited - was
21 bought
22 moved
23 didn't go
24 Did she get
TT
22 tháng 3 2021
Hello! John.
Glad to see you again. Tam, this is my cousin, Peter. It's his first to visit to your country.
How do you do? Welcome to VN
Thank you. Nice to meet you, Tam
Can I help you with your suitcases, John?
Thanks. I can manage.
OK. Now we're going to the hotel in the center of the city by taxi
That would be nice. How far is it from the airport to the center of the city?
It's about a half-hour drive
Look, John! What a lot of motorbikes in the streets!
Oh, yeah. That surprised me by the time I first came to VN
Motorbikes are our main means of transport. I go to school every day by bike.
Would you mind taking me around the city by bike?
No, of course not. But I have to ask someone else to get Peter, too
Peter, do you mind if Tam's friend gives us a ride around the city?
No, I don't mind. But I feel a little bit scared because the traffic is so heavy
OK. So we'll go on a sightseeing tour by bikes at weekend
TN
1
8 tháng 5 2020
\(\Leftrightarrow4x+3\le4x^2+4\Leftrightarrow4x^2-4x+1\ge0\)
\(\Leftrightarrow\left(2x-1\right)^2\ge0\) (Luôn đúng )
=> Đpcm
8 tháng 5 2020
\(\frac{4x+3}{x^2+1}\le4\)
\(\Leftrightarrow\frac{4x+3}{x^2+1}\le\frac{4\left(x^2+1\right)}{x^2+1}\)
\(\Leftrightarrow4x+3\le4\left(x^2+1\right)\)
\(\Leftrightarrow4x+3\le4x^2+4\)
\(\Leftrightarrow4x-4x^2+3-4\le0\)
\(\Leftrightarrow-\left(2x-1\right)^2\le0\)(đpcm)
12 will have
13 wouldn't happen
14 won't play
15 will you do
15 C
16 C
17 B
18 D
19 C
20 C
12 will have
13 wouldn't happen
14 won't play
15 will you do
15 C
16 C
17 B
18 D
19 C.
20 C