m = 12,96 + 1,35.62 = 96,66 g

, vì 5x4 tận cùng bằng 0 mà

I go to school

We have breakfast

You must go to school early

She washes her hands

He eats dinner

It has a colorful flower

1.If we pollute the air, we will have breathing problems.

2. If people pollute the water, a lot of fish will die

3. If we cut down trees in the forest, there will be more floods.

My elder sister sometimes works as hospital volunteer

We always do experiments in chemistry class 

My uncle is a pilot. He flies international flights. - How exciting! 

He feeds buffalos, pigs and chickens everyday.