1.A few people are ...on... the mountain and they are .in....danger.

2.I have to stay....up. late because I don't finish my homework.

3.My father always goes to work...in...his own car.

1.How old is she?->What is her age?

2.The bookstore is to the right of the toy store.->The toy store is to the left of the bookstore.

3.How much is a bowl of noodles?->What is the price of a bowl of noodles?

4.Orange is her favorite drink.->She like orange best.

chúc bn hok tốt

1c

2d

d

1.protect(should+V)

2.eats

a,7/6x=3/5-1/30

7/6x=17/30

x=17/30:7/6

x=17/35

b,(-9/2-2x).11/7=11/4

-9/2-2x=11/4:11/7

-9/2-2x=7/4

2x=-9/2-7/4

2x=-25/4

x=-25/4:2

x=-25/8

c,9

d,x=-2

e,2.8=x.x=x²

16=x²=>x=4 hoặc -4

1.How thick is the great wall?

2.Does he has a few paddy fields?

3.What is the weather like in the summer?

4.Where is he going to?

5.Is he going to stay in a hotel?

6.What color is the window?

7.How much meat does he need?

8.How do you feel?

9.Is Ho Chi Minh city is the biggest city in Vietnam?

mk k có

để ps A nguyên thì n+3 chia hết cho n-2

suy ra (n-2)+5 chia hết cho n-2

suy ra 5 chia hết cho n-2

suy ra n-2 thuộc {1;-1;5;-5}

n thuộc {3;1;7;-3}

2)có 1/(a+1)+1/a.(a+1)=a.(a+1)/[(a+1).a.(a+1)]+(a+1)/[(a+1).a.(a+1)](nhân chéo)=a.(a+1)+(a+1)/a.(a+1).(a+1)=(a+1)(a+1)/a.(a+1).(a+1)=1/a

áp dụng :1/5=1/(5+1)+1/5.(5+1)=1/6+1/30

đó là booth vì âm o của nó đọc khác 3 từ còn lại.nếu không tin bn có thể lên google dịch .thế thôi