37 have just been finished

38 seen my sister for 3 weeks

39 snow, all flights wouldn't be cancelled

40 I can't swim, I don't go scuba diving with Terry

\(A=-\left(x^2-4x+4\right)-\left(y^2+4y+4\right)+10\\ A=-\left(x-2\right)^2-\left(y+2\right)^2+10\le10\\ A_{max}=10\Leftrightarrow\left\{{}\begin{matrix}x=2\\y=-2\end{matrix}\right.\)

Sao mình không thấy nội dung bạn ơi?

mik ko thấy bài đâu bạn?

okkkkkk kaka

Câu nèo thé ?_?

Câu nào thế bạn????

where is câu hỏi???

1 isn't done

2 is asked

1,Isn't done

2, is asked 

xét tứ giác AFCD có EA=EC;ED=EF nên tứ giác AFCD là hình bình hành

1, What would he like to have for breakfast?

He would like to have a sandwich

2,Who would you like to go fishing with?

I would like to go fishing with my father

3,What would her children like to do in the summer?

They would like to go swimming

4,When would Mrs Tam like to go shopping?

She would like to go shopping at weekends

5,Where would Hung and Tung like to study

They would like to study in the library

1 What would he like for breakfast? 

He'd like a sandwich

2 Who would you like to go fishing with?

I would like to go with my father

3 What would her children like to do in summer?

They would like to swim inpool

4 When would Mrs Tam like to go shopping?

She would like to go shopping on the weekends

5 Where would Tung and Hung like to study ?

THey would like to study in the school library