tui k cậu rồi đó 

\(\frac{2^{1005}.7^{1005}.5^{1006}}{2^{1007}.5^{1004}.7^{1004}}\)

\(=\frac{7.5^2}{2^2}\)

\(=\frac{175}{4}\)

Chúc bạn học tốt^^

-1 tớ kết bạn rồi 

1.He is a strict...(examine)

2.I want to... at course(attend)

3.You need to be...enough to do the job (qualify)

4.I saw your school's...in today's edition of the vietnam news(advertise)

5.If you want to...your english,we can help you (improvement)

10 . 10 . 2 . 3
= 100 . 2 . 3
= 200 . 3
= 600
Tích nha

1.He said he...(go)to HCM city the following day.

2.She asked if my school...(be)near there.

3.Maryam said she...(must)go then.

4.I asked her where she...(live).

5.The examiner asked me if I...(speak)any foreign languages.

1.If you...(study) hart,you will pass the written examination.

2.If the weather...(be)fine,we will go for a picnic.

3.he...(write)to you if he time.

4.They...(have)a lot of fun if they come there.

5.If she...(not hurry),she will miss the bus.

6.You would feel better if you(take)...a short rest.

7.What(happen)...if the moon disappeared?

8.If I...a bird,I would be a dove.

9.Ifwe flew,we(see)...the world from above easily.

10.Had I had a map .I...(not lose)way.

1.''You must do your homework everyday.'',said Miss Borne to us

2.''Where are you going for your holidays?,asked Martha

3.''We said to them,''Your houses are very nice''

4.''How many classes are there in your school?'' my mother asked

5.''Don't forget to turn off the light''.he said