(999-100):1+1=900(số)

minh la fan cuong nhiet cua truong han do nha!!!!!!!!!!!

-10 + (-9) + .... + (-1) + 0 + 1 + 2 + ... + x = 155

-55 + x . (x + 1) : 2 = 155

x . (x + 1) : 2 = 155 + 55 = 210

x . (x + 1) = 210 . 2 = 420

x . (x  + 1) = 20 . 21

Vậy x = 20

1. ‘’ Can you carry these chairs into the house? ‘’

Mrs Lan asked me …...if I could carry those chairs into the house.......

2. ‘’ Please give me your book? ‘’

He told me …..to give him my book.........

3. ‘’ You shouldn’t make noise in class. ‘’

The teacher said …...that we shouldn't make noise in class........

4. ‘’ Can you help Tam with his English pronunciation? ‘’

Mr Hung asked me …. ....if I could help Tam with his Eng pronunciation.......

5. My hobbies are playing sports and reading books

I love ……playing sports and reading books……

6. She was born on May 10^th, 1996

Her birthday……is on May 10th 1996……..

7. Nga must wash the dishes everyday

Nga has ……to wash the dishes everyday……

8. We began to study English 4 years ago

We have ……studied English for 4 years…..

9. No one in class is as tall as Tam

Tam is the ……tallest in class….

10. Women often did the house work without the help of modern equipment in the past

In the past women used …to do the housework without the help of modern equipment…….