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Teen của một số nguyên tố hóa học:

- Sodium

- Lithium

- Oxygen

- Nitrogen

- Carbon

- Calcium

1. His brother goes to the theater once a month.

2. I usually store the onions into the basker in the kitchen shelf.

1. You shouldn't eat large meals right before bedtime.

2. He takes two hours a day to read books about adventure.

3. Would you like to buy tickets for the concert.

Hi Lam,

Are you free next Friday? I'd like you to go to the cinema. Do you want to come? I thought you might like to come with us. Maybe it will be at 7.00 pm. I will pick up you tomorrow at 6.30, so we can go out to eat at a restaurant nearby. Let me know if you want to come.

See you soon,

Thi

Tran Phuc Giang Thi

1. I think we will travel to the hyperloop in the future.

2. Traffic in big cities often worse than small towns.

3. Are there usually any special activities for children in festivals?

Question 1: Last night, I didn't order milshake because I wasn't thirsty.

Question 2: How much time do you spend to do math homeowork each day?

Question 3: Eating fruits and vegetables is the healthiest way to stay fit.

1. Reuse means using something again instead of throwing it away.

2. Did your school organise the donation drive last winter?

a) A = \(\left(\frac13-\frac{8}{15}-\frac17\right)+\left(\frac23+\frac{-7}{15}+1\frac17\right)\)

A = \(\frac13-\frac{8}{15}-\frac17+\frac23+\frac{-7}{15}+1\frac17\)

A = \(\frac13-\frac{8}{15}-\frac17+\frac23+\frac{-7}{15}+\frac87\)

A = \(\left(\frac13+\frac23\right)-\left(\frac{8}{15}+\frac{7}{15}\right)+\left(\frac87-\frac17\right)\)

A = \(1-1+\frac17\)

A = \(\frac17\)

Vậy A = \(\frac17\)