Giúp em với mn 
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giúp em với mn ơi,e đag cần gấp, mn giúp em với ạ
31 tháng 10 2021
a: Xét ΔBAC có
D là trung điểm của AB
M là trung điểm của AC
Do đó: DM là đường trung bình của ΔABC
Suy ra: DM//BC và \(DM=\dfrac{BC}{2}=3.5\left(cm\right)\)
NM
6
27 tháng 6
1.I think you ought to give up playing video games. (should)
-->I think you should give up playing video games.
2.It's necessary for me to finish the work on time. (have to)
--->I have to finish the work on time.
3.It wasn't necessary for you to clean that car. (have to)
--->You didn't have to clean that car.
4.It was quite unnecessary for you to adopt a green lifestyle. (have to)
---->You didn't have to adopt a green lifestyle.
5.It was careless of you to leave the windows open last night. (shouldn't)
----->You shouldn't have left the windows open last night.
6.It is advisable for each member in the family to share the housework equally. (should)
---->Each member in the family should share the housework equally.
7.You are required to come back home before 10 p.m. (must)
--->You must come back home before 10 p.m.
8.Lina is advised to prepare carefully in the morning. (should)
----->Lina should prepare carefully in the morning.
9.Tu is responsible for picking up litter. (have to)
------>Tu has to pick up litter.
27 tháng 6
1.You are required to ask your parents for permission before staying out late. (must)
You must ask your parents for permission before staying out late.
2.I think you ought to give up smoking immediately. (should)
I think you should give up smoking immediately.
3.It is not a good idea for me to stay up late. (shouldn't)
I shouldn't stay up late.
4.It wasn't necessary for you to send these letters. (have to)
You didn't have to send these letters.
5.It was unnecessary for Tim to finish the work. (have to)
Tim didn't have to finish the work.
6.It was careless of you to leave your children alone at home. (shouldn't)
You shouldn't have left your children alone at home.
Bằng 1 cách nào đó 1 câu hỏi từ 2023 ở đây và tôi vẫn trả lời nó sau 1 năm :v
LT
mn giúp em và giair thích giúp em với ạ em cảm ơn mn
1
28 tháng 1 2023
2. get lucky money
3. talent show
4. always
5. food stands
6. fireworks
7. never
8. eat traditional foods
29 tháng 1 2023
1.start / 2.open / 3.leaves/ 4.close / 5.ends / 6.leave
GH
0
giúp em với ạ mn mong mn giúp e\ạ em cần gấp ạ
6 tháng 9 2023
1.she spends 20 minutes to draw a picture
2.Lan is the most creative in the group
3.No one is smaller than him
4.My pen isn't the same than mine
5.Lan is jealous than her
6.My brother no longer raise pets
-chúc bạn thật thông minh!!!!
3N
1
YN
2 tháng 3 2022
1 The distance from my home to school is about 3 km
2 My mum used to live in a small village when she was small
3 Despite being a millionaire , he lives in a small flat
4 when does the festive take place ?
5 It is about two kilometres from my home to school
6 he didn't use to ride his bike to school
7 Despite having a test tomrrow , they are still watching TV now
TM
0
2N
1
2N
1
18A 19D 20B