all / do / friends / housework / relatives. / we’ll / now / time / have / and / my / for / Robots / so / can

(-3,4) . 5,4 + 5,4 . (-6,6)

Sắp xếp các số sau theo thứ tự tăng dần:

2 và 5/7, -5/8, 7/-9, 13/5

Find the mistake and correct it:

1.     I have just decided to start working next week.

2.     He has been at his computer since seven hours.

3.     She hasn’t received any good news since a long time.

4.     My father hasn’t played any sport for last year.

5.     I’d better have a shower. I hasn’t had one since Thursday.

6.     Jinho have lost his key. He can’t find it anywhere.

7.     How much games has this team won so far this month?

8.     Long doesn’t know her husband. He never has met him.

9.     They live in Australia. They has lived there all their life.

10.  Your house looks very clean and beautiful. Have you wash it?

11.  The girls has visited the museum 3 times.

12.  John and Sophie have help in the garden for 30 minutes.

13.  My family has lived in this town in 2010. 

14.  How long have you studying English? 

15.  My sister have buy a new bike. 

Mình cần gấp ạ

So sánh 2 phân số:

a) 64/85 và 73/81

b) n+1/n+2 và n/n+3

c) 64/65 và 60/61 

d) 99/97 và 88/86

Hãy dùng phân số trung gian để so sánh 2 phân số!!

1.        How long you (wait)  for me?

2.        This is the second time I (watch) this comedy with my boyfriend.

3.        I (not hear) from you for ages.

4.        My boyfriend is the most galant man I (know).

5.        I (wait) for him since 2 p.m.

6.        He (not eat) this kind of food before.

7.        She is the most warm-hearted woman I (meet).

8.        You (finish) the test yet?

9.        I (know) him for ages because we were neighbours when I was a child.

10.     She (teach) me English for 3 years.

Cho p/số: A = 1+2+3+...+9/11+12+13+9

a) Rút gọn A

b) Hãy xóa một số hạng ở tử và một số hạng ở mẫu của phân số A để được phân số mới có giá trị vẫn bằng A.