Tử số là:

(30-6):2=12

Mẫu số là:

30-12=18

Vậy phân số là:12/18

1.D

2.A

3.C

4.B

5.A

nhà thiên văn học Ân độ

1+2.''Why ........................(you/not/ride) your bike these days ?''

-''Because my brother ........................(ues) it"

các bạn giúp mình với 

I am writing (write)to you from my tent.It's our family holiday and the weather ................(điền to be) terrible! Right now,it...........(rain) and the wind .............(blow).It ..................(feel) like winter.

        We .............(stay) in a field near the mountains.We .................................(often/come) here in the summer.I ...................(not/know) why I ...................(not/like) camping. My things ...................(always/get) wet and dirty.I ................(want) to stay in a big hotel by the sea in a hot country.

            What about you ?.........................................(you/like) camping?...................(you/have) a holiday every year?Where ................(you/usually/go)?

See you soon,

Toby 

cảm ơn các bạn giúp mình thanks

mình đang cần gấp các bạn làm nhanh một chút nhé

they do not go to work saturday and sunday