How many tables are there in the classroom? - ................ twenty tables.

A. There is

B. There be

C. There’s

D. There are

Read the following passage and do the tasks that follows and choose True or False

Nam is a student. He is twelve years old. There are four people in his family: his father, his mother, his sister and him. They are in the living - room. His father is an engineer. He is forty. His mother is a teacher. She is thirty – five years old. Lan is his sister. She is sixteen. She is a student, too.

Question: Nam is twelve years old.

A. True

B. False

Động cơ điện là dụng cụ biến đổi:

A. Nhiệt năng thành điện năng.

B. Điện năng thành cơ năng.

C. Cơ năng thành điện năng.

D. Điện năng thành nhiệt năng.

Match

1. What does Lan often do in her free time?

2. Is he the main character in this fairy tale?

3. What would you like to be in the future?

4. Do not look directly at the Sun!

5. Mr Quang had a backache

a. You may be blind.

b. He needs to see the doctor

c. No, he isn’t

d. She often plants tree

e. I would like to be an artist

Read the definitions and then match them with the words.

 ___________ A film that tells an exciting story about murder or crime.

Bạn áp dụng định luật BTKL í

Để mình giúp cho :

PT:Fe+2HCl -> FeCl2+H2

Áp dụng ĐLBTKL ta có :

m FeCl2 = m Fe+m HCl- mH2

= 11,2 +14,6-0,4

=25,4(g)

Chúc bạn học tốt