USE ' IT WAS NOT UNTIL..'

We didn't meet her until we moved to HN

->

USE ' IT WAS NOT UNTIL..'

1. we didn't eat anything until he got home

->

2. john didn't celebrate until he received the offer of promotion in writing

->

3. i didn't solve the problem until the teacher helped

->

4. he didn't go to the concert until he was 20

->

5. the football match didn't start until 3 yesterday afternoon

->

USE ' IT WAS NOT UNTIL..'

we didn't meet her until we moved to Ha Noi

->

USE PURPOSE

1. I have set the alarm clock because i don't want to be late for work tomorrow

->

2. He turned down the TV because he didn't want to annoy the neighbors

->

3. I have applied for a library ticket. We can all borrow some books

->

Use Purpose

i went out into the garden because i wanted to get some fresh air

->

so sánh lượng khí sinh ra khi cho cùng 1 lượng Fe lần lượt tác dụng hết với axit sunfuric loãng, dư và axit sunfuric đặc nóng, dư (tạo sản phẩm khử duy nhất là SO2)