1-Many houses were built last moth by them.

 2-His village is surrounded by Big mountains.

3-Math is taught by Ms.Anna at my school.

4-Many famous films are made by people in Hollywood.

5-All of my homework was completed yesterday by me

6-Money is not kept in the house by them.

7-We were not driven to school yesterday by my father

8-The Imperial Academy was built in 1076 by Ly Nhan Tong.

9-The house was surrounded last night by police.

10-The truth isn't told by him to me.

C,provied

do tỉ lệ sống trẻ em sinh ra và số người chết đi

1,-Motorbikes are more expensive than bikes.
   -Motorbikes aren't cheaper than bikes.
2,-Duong is the best in the class.
3,-Nobody are worse at Maths than Peter.
4,-Mr.Ba's car is the biggest in the company.
5,-Watching TV is more interesting than reading books.
6,-No one in our class are more beautiful than Sally.
7,-Tim's brother is lazier than him.
   -Tim's brother isn't more hard-working than him.
8,-Is this computer the cheapest?
9,-My brother is friendlier than me.
10,-Jack is the most hard-working in the group.
11,-The black dress is / than the green dress.
12-Math is harder than Vietnamese.

Số cây xoài chiếm số % tổng số cây là:
\(68:200\times100:100=34\%\)(tổng số cây)
Đáp số: 34% tổng số cây

Chiều rộng của mảnh vườn đấy là:
\(32\times75\%=24\left(m\right)\)
Diện tích của mảnh vườn đấy là:
\(32\times24=768\left(m^2\right)\)
Diện tích trồng hoa là:
\(768\times35\%=\dfrac{1344}{5}=268,8\left(m^2\right)\)
Đáp số: \(268,8m^2\)
 

số cây xoài chiếm số % cây ổi hay tổng số cây?

1-D
2-C
3-A
4-A
5-C
6-B
7-D

A. Tế bào sinh dưỡng của ong đực.