chia động từ trong ngoặc

1, Linda wasn't at home yesterday. If she(be) at home yesterday, I (visit) him

2, We will move into our new house next month if it(complete) by then

3, I was very tired; otherwise, I (go) to the party

4, If you (sleep,not) last night when we arrived, I would have asked you to go with us, but I didn't want to wake you up

5, What would you be doing right now if you (be,not) in class? - I (sleep)

6,What will happen if my parachute (not/open)?

7, If she (not/get) married young, she wouldn't have had many children

make question for word in italics (đặt câu hỏi cho từ in nghiêng )

she speaks French very well

cho các số x,y,z nguyên dương thỏa mãn. CMR:

M=\(\dfrac{1}{x^3+y^3+1}+\dfrac{1}{y^3+z^3+1}+\dfrac{1}{x^3+z^3+1}\le1\)

giải phương trình

\(2\left(x+1\right)^2=9x\left(\sqrt{x+2-1}\right)^2\)

 là bàn chải đánh răng nha bạn 

1, It's too bad that's snowing, if it (snow,not) we could go for a drive

2, I am glad I have so many friends and such a wonderful family. Life without friends or family (be)lonely for me

3, Bill has such a bad memory that he(forget)his head if it (be,not)attached to his body

4, What would you be doing right now if you(be,not)in class?- I(sleep)

5, Will you phone if there(be)any problems?

6, If he (get up) earlier, he'd get to work on time

\(\left\{{}\begin{matrix}\left(x+y\right)\left(1+\dfrac{1}{xy}\right)\\\left(x^2+y^2\right)\left(1+\dfrac{1}{x^2y^2}\right)\end{matrix}\right.\)giải hệ

\(\left\{{}\begin{matrix}x^2-xy+y^2=1\\2x^2-3xy+4y^2=3\end{matrix}\right.\)

giải hệ phương trình