Do you (clean) clean his house everyday?

He (clean) cleans his house everyday.

~Study well~

#KSJ

Do you clean his house everyday ?

Does he clean his house everyday ?

They are a driver. -> They are drivers.

Who is they ? -> Who are they ?

Is Nam and Ba students ? -> Are Nam and Ba atudents ?

You and I am students. -> You and I are students.

=))

They are drivers ( they phải đi với danh từ số nhiều nên bỏ 'a' và driver thêm 's')

Who are they? (they đi với 'are')

Are Nam and Ba students? ( Nam and Ba là số nhiều nên đi với 'are')

You and I are students ( You and I là số nhiều nên đi với 'are')

Who are they? They are engineers. (câu này ko sai nha)

Chúc bạn học tốt!

A = ( 100 - 1 ) ( 100 - 2 ) .... (100 - n ) 

A =  ( 100 - 1 ) ( 100 - 2 ) .... (100 - 100 ) ( thay n=100 )

A = 99 . 98 . 97 ......1.0

 A = 0 

A = (100 - 1)(100 - 2)(100 - 3) ... (100 - n)

mà có 100 thừa số

=> A = (100 - 1)(100 - 2)(100 - 3)...(100 - 100)

A = 99.98.97....0

A = 0

1. What was Peter's height last year ?

=> How_____hight was peter last year ?____________

2. Work hard or you will fail the exam.

=> If you don't________work hard , you will fail the exam______-

3. The children couldn't go swimming because the water was very cold.

=> The water was very cold , so the children couldn't go swimming

      The cold water prevented the children from going swimming 

4. I fancy going to the cinema at weekends

=> I am___interested in going to the cinema with my friends at weekends______________-

1. What was Peter's height last year .

=> How tall was Peter last year?

2. Work hard or you will fail the exam.

=> If you don't work hard, you will fail the exam.

3. The children couldn't go swimming because the water was very cold.

=> The water was so cold that the children couldn't go swimming.

      The cold water prevented the chirldren from going swimming

4. I fancy going to the cinema at weekends

=> I am interested in going to the cinema at weekends.

1 watches

2 doesn't study

1. Watch

2. Doesn't study

Chúc bạn học tốt

S = 1 + 2 + 3 + ... + 2005

S = (1 + 2005).2005 : 2

S = 2006.2005 : 2

S = 2005.1003

S = 2011015

2005 x 101

= 2005 x (100 + 1)

= 2005 x 100 + 2005

= 200500+ 2005

= 202505

143 x 102

= 143 x (100 + 2)

= 143 x 100 + 143 x 2

= 14300 + 286

= 14586

vì abcabc chia được hết cho 7

\(abcabc⋮7\)

Ta có: \(abcabc=abc000+abc\)

                           \(=1000abc+abc\)

                            \(=1001abc\)

Do \(1001⋮7\Rightarrow abcabc⋮7\)

Are you doctors ? Yes, WE are .

#NPT 

Are you doctors ? Yes, .....we..... are .

we nha vì người ta dùng doctors (số nhiều) nên thay vì you thì ta trả lời là we 

Hok tốt nha !