ok  

có

Bài 1: Hòa tan 6,2 g NaOH và 4 g H2O

a, Tính C% dung dịch thu được ?

b, Tính Cm dung dịch thu được biết H2O = 1g / ml ? 

I. Complete the sentences with correct form of verbs.

1. People tend__________ ( think ) that the problem will never affect them.

2. My parent advised me _____ (learn) enghish as soon as possible.

3. Many young people spend the whole day________(play) online games

4. It took me a whole day _________ (travel) to Dalat last week.

5. I can't see the attraction of ______(sit) on a beach all day.

6. A positive aspect of education is that it contributes to________(confirm) one's indentity.

7. I like to listen to birds__________(sing) when i get up early in the morning.