1. It's about 2km from my house to school.

2. Every day I go to school by bike.

3. It's about 5 minutes.

4. We should obey the traffic rules.

5. Pedestrians: alway go on the right; across the street at the zebra crossing

Drivers: alway fasten seat - belt; don't drink alcohol when driving.

Cyclist and motorist: give a signal before turn left or turn righ

Audio script

1. Tony: How do you practise listening?

Mai: I often watch English cartoons on TV.

Tony: Great! Let's watch cartoons together.

2. Linda: What are you going to do on Sports Day?

Mai: I'm going to play badminton.

Linda: I like badminton, too. Let's play together.

Mai: OK.

3. Tom: What subject do you like best, Nam?

Nam: English. It's my favourite subject.

Tom: How often do you have English?

Nam: I have it four times a week.

4. Linda: What are you reading, Tom?

Tom: Snow White and the Seven Dwarfs.

Linda: What do you think of the main character?

Tom: Snow White is very kind.

⇔ 2(x + 5) – (  + 5x) = 0

⇔ 2(x + 5) – x(x + 5) = 0

⇔ (2 – x)(x + 5) = 0

⇔ 2 – x = 0 hoặc x + 5 = 0

• 2 – x = 0 ⇔ x = 2

• x + 5 = 0 ⇔ x = -5

Vậy x = 2 hoặc x = -5.

a, |8x-3|=4
b, |6x-5|=|5x-4|
c, |x-6|=-5x+9
d, |x-7|-3=x

1D 2A 3B 4C