Giúp em vs ạ
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MM
0
2 tháng 10 2021
\(A1+2=A2\)
\(\overline{A}\) =\(\dfrac{A1\cdot54+\cdot\left(A1+2\right)\cdot46}{100}\)=79.92
\(\Leftrightarrow\)A1=79\(\Rightarrow\)A2=81
DT
Đỗ Thanh Hải
CTVVIP
27 tháng 9 2021
1 When do they do their homework?
2 Who came to the party aloe
3 Which blouse do you like
4 How did she feel after she took a nap
5 How long did she talk to him
6 How many cars do your parents have
7 When are they coming to visit you?
8 Who is your brother
9 Why don't you get up early?
10 How often do you have an English class
HV
10 tháng 11 2021
1 had gone to bed, we watched television
2 had a swim for 5 days
3 met him for 5 months
4 gone to this club since 1999
5 come to this city since July
6 learned French since 2001
7 played chess for 3 years
8 smoked for 5 years
9 there, Jack had left the office
10 I have visited England
11 the first time I have met this lady
12 I was having dinner, the phone rang
13 we arrived there, David had left the party
14 used to wear glasses before
15 ages since we last went to a concert
16 saw her friends when she left for the United states
17 the first time I have stayed in such an expensive hotel
DT
Đỗ Thanh Hải
CTVVIP
15 tháng 11 2021
1 After the children had gone to bed, we watched television
2 She hasn't had a swim for 5 years
3 I haven't met him for 5 months
4 Tom hasn't gone to this club since 1999
5 They haven't come to this city since July
6 Tom has learned French since 2001
7 She has played chess for 3 years
8 He hasn't smoked for 5 years
9 When I arrived at the office, Jack had left there
10 This is the first time I have visited England
8 D
7 D
8 A
9 A
10 B
11 B
12 A
13 D
14 C
15 C
16 D
17 C
18 B
19 C