Nhận định nào sau đây đúng?

A. Ankin chỉ tham gia phản ứng cộng với Br 2  theo tỉ lệ 1 : 1.

B. Tất cả các xicloankan đều tham gia phản ứng cộng với  Br 2 .

C. Ankađien không tham gia phản ứng cộng.

D. Ankan không tham gia phản ứng cộng.

Dãy đồng đẳng nào sau đây tham gia phản ứng cộng với Br 2  theo tỉ lệ 1 : 1?

A. Ankin

B. Anken.

C. Ankan.

D. Ankađien.

Trong các hình vẽ sau, hình vẽ nào là đồ thị hàm số y = 2x + 1

A. Hình 4

B. Hình 2

C. Hình 3

D. Hình 1

Read the passage below and decide whether the statements are TRUE or FALSE?

Once upon a time, there was a girl called Cinderella who did all the work in the kitchen while her lazy sisters did nothing. One night her sisters went to a ball at the palace. Cinderella was left home, feeling very sad. She began to cry. After a time her fairy godmother appeared and told Cinderella that she could go to the ball, but she had to return home by midnight. So she went to the ball in a beautiful dress and a wonderful coach. She danced with prince, but at midnight she ran back home, leaving one of her shoes on the dance floor. The prince wanted to see her again and went to every house in the capital until he found that the shoe was the right size for Cinderella. The prince and Cinderella were married and lived happily ever after.

Question: Cinderella was sad because she can’t go to the ball.

A. True

B. False

Read the passage and write the correct words in the blanks.

room, on, nine, is, near

Hi, I am John. I am (1)______ years old. This (2)___________ my sister. Her name is Mary. This is our (3)____________. There is a cupboard (4)________ the door. There are two posters (5)____________the wall. There is a table and two chairs.

____ anything so strange in your life?

A. Have you ever been hearing

B. Have ever you been hearing

C. Have you ever heard

D. Have you ever heared

A. rêu, dương xỉ, hạt trần, hạt kín

B. tảo, rêu, dương xỉ, hạt trần

C. tảo, rêu, dương xỉ, hạt kín

D. tảo, rêu, hạt trần, hạt kín

III.Give the correct of the words in bracket.

1.oxford is a university with an excellent ... in england (reputable)

2.Our school has a lot of well - ... teachers. (qualify)

Iv. làm cho giống nghĩa câu gốc:

1. Study harder, or you will fail in the examination.

If..............................................................................

2. "What music do you like best" she asked me.

She asked.............................................................

3.They had to cancel their picnic because the weather was cold.

.....................................................so..............................................

4. It is a pity, they can not go hiking with us this Sunday .

I wish.................................................................................

5, She said:" I am doing my homework now"

She said that..................................................

Giups mình nhanh mình đang cần gấp

Sau khi chiến dịch Biên giới thu - đông 1950, quân dân ta giành nhiều thắng lợi trên mặt trận quân sự. Hãy cho biết chiến dịch nào là thắng lợi lớn nhất?

A. Chiến dịch Trung du (Trần Hưng Đạo)

B. Chiến dịch đường số 18 (Hoàng Hoa Thám)

C. Chiến dịch Hà - Nam - Ninh (Quang Trung)

D. Chiến dịch Hòa Bình