c

vật thể: 1. quả chanh

              2. bánh kẹo

              3. bình hoa

               4. vách tế bào thực vật

Chất: 1. axit xitric

         2. saccarozơ

         3. thủy tinh, chất dẻo

         4. xenlulozơ

b

33.  This shirt is more expensive than that one

34.  My sister is helping my mom with the housework now

35. Is it difficult to speak English fluently?

36. Peter's younger sister will be eight years old on her next birthday

Diện tích hình chữ nhật ABCD là

14 x 6= 84 (m²)

Diện tích hình vuông CENM là:

7 x 7 = 49 (m²)

Diện tích của mảnh đất tạo bởi hình chữ nhật ABCD và hình vuông CENM là:

84 + 49 = 133 (m²)

Đáp số: 133 m²

độ dài trung bình hình thang là: \(\dfrac{12+20}{2}=16cm\)

x + 24 = 76

x         = 76 - 24

x          = 52

x + 38 = 59

x          = 59 - 38

x           = 21

x + 62 = 84

x         = 84 - 62

x          = 22

x + 22 = 87

x          = 87 -22

x          = 65

x + 14 = 25

x+ 52 = 78

x        = 78 - 52

x        = 26

x + 71 = 94

x         = 94 - 71

x         =23

x + 82 = 86

x          = 86 - 82

x          = 4

1. They have just built a new church near my house 

-] A new church has just been built near my house

2. People play soccer all ever the world 

-] Soccer is played all ever the world 

3. The postman brought the mail early today 

-] The mail was brought by the postman early today

4.They have found oil in the Antarctic 

-] Oil has been found in the Antarctic

5.Someone gave Mary this present an hour ago 

-] Mary was given  this present an hour ago

6.People can find a cure for cancer in the future

-] A cure for cancer can be found in the future

7. We must finish out project on time 

-] Our project must be finished on time

Lan can't paint as well as Nam

I like listening to music

My school has a garden

Our house has two bedrooms

The computer is front of the cat

39.a

40. b