Although he was seriously ill,he was determined to finish his work

In spite of.........................................................................................

If you don't stay at your bed,you will be punished

Unless...............................................................................................

The last time I saw her was in 2005

I haven't............................................................................................

A new bridge is going to be built next year

They are.......................................................................................

they will build a new mall here

--> A new mall...........................................

unless he takes these pills,he won't be better

--> If.....................................................................

They last visited their home village five years ago

--> They haven't..........................................................................

Iam sorry Iam busy now

I wish.......................................................

she doesn't have a bike

she wishes.....................................................

we played soccer in the afternoon long ago

we used........................................................

We should protect the environment and save .................... resources. Nature

Tìm x

a) x + 3 4 = 5 3                 b) x -  1 6 = 5 12

Trọng lượng phụ thuộc vào yếu tố nào?

Chứng minh rằng:  C = 1 10 + 1 11 + 1 12 + ... + 1 99 + 1 100 > 1