Ngta làm cho mình rồi thì bn tick đúng ik. Rồi hôm sau ngta có hứng làm cho mình. Chứ giải xong bài mà k nhận được gì, ngta k thèm giải
( Ý kiến riêng, tại mình từng gặp trường hợp như v nên khuyên bn)

Cho tứ giác ABCD. Gọi M, N, P, Q lần lượt là trung điểm của AB, BC, CD, DA.
a) Chứng minh tứ giác MNPQ là hình bình hành.
b) Biết rằng \(AC\perp BD\). Chứng minh MNPQ là hình chữ nhật.
c) Chứng minh : \(MP+NQ< \dfrac{1}{2}\left(AB+BC+CD+DA\right)\)

Nguyễn Việt Hà
Làm giúp, plzz

Bài 1: Cân bằng các phương trình hóa học sau:

a) \(Fe\left(OH\right)_3.....>Fe_2O_3+H_2O\)

b) \(Fe_2O_3+CO.....>Fe+CO_2\)

c) \(FeS+O_2....>Fe_2O_3+SO_2\)

d) \(Mg+Cu\left(NO_3\right)_2....>Mg_x\left(NO_3\right)_y+Cu\)

Viết lại câu sao cho nghĩa ko đổi

1.What time is it?-> What.....IS THE TIME..................................?

2.That apartment is more modern than any apartments

->That ........APARTMENT IS THE MOST MODERN.....................................

3. She is the best student in my class

->She is.....BETTER THAN ANY STUDENTS IN MY CLASS....................

4. He is the worst student in his class

->No one........IN HIS CLASS IS WORSE THAN HIM.....................................

5. She is the best student in her class

-> Nobody..........IN HER CLASS IS BETTER THAN HER...........................

1.Where is Mr. Tuan's house?

-> Mr Tuan's house is in the centre of the city

2.Is his house bad or good?

-> His house is good

3.How many rooms are there in his house?

-> There are five room in his house

4.What is there in front of the house?

-> There is a small flower garden in front of the house

5.Are all the rooms small and dirty?

-> No, they aren't

6.What is in the barthroom?

-> It has a sink and a shower

7.What is in the kitchen?

-> It has washing machine, dryer, refrigerator, dishwasher, electric stove, dinning table and TV set

8.Which is more expensive: the living room or the kichen?

-> The kitchen is more expensive than the living room

9.Which room is the most modern of the house?

-> The kitchen is the most modern room of the house

10.Which room does Mrs. Tuan like best?

-> Mr Tuan likes the kitchen best

bài 2: Điền a lot of, a few, a little,much,many vào chỗ trống

1.My elder sister has_______money

2.Lan is very hungry. She has_______time to go work in time

3.Hoa is very unhappy because she doesn't have_______friends

4.Can I ask you________questions?

5.I want to take_________photoraphs at the party

6.Mr. Nam always drinks_________tea in the morning

7.There aren't__________guests at the party

8.There are__________book shops in this town

9.Is there___________fish in the fridge?

10.Lan doesn't spend___________time on studying English

bài 3: Mỗi câu sau có 1 lỗi sai hãy sửa lại cho đúng

1.Nga lives on 52 Le Trung Dinh street

2.Where we will tomorrow evening?

3.What is your number telephone?

4.Nam's birthday is at December

5.How wide is it from your house to the bus stop?

6.Nam and Minh often goes fishing in their free time

7.Mai likes English but she don's like history

8.Do people in your town go to work on bicyle?

9.What is her birth of date?

10.How is the weather like today in Viet Nam?

Đề j cụ thể đi bạn:)

1. phuong doesnt' like football and ..............mai

a. so is b .so does c. does so d. neither does

Steve likes fishing. He fishes in the river near our house. On Sunday afternoon, when he has no work, he goes down to the river with a little seat and some sandwiches and fishes until it is quite dark. There are always a few people there. They love fishing and they all sit there quietly for hours. Sometimes they catch some fish, sometimes they do not. I don’t like that kind of sports because I’m not very patient.