Gọi số cần tìm là ab ta có :

4ab = ab  x 26

ab  x 26 = 400 + ab

ab x 26 - ab = 400 + ab

ab x 25 = 400

      ab = 400 : 25

      ab = 16

Vậy số cần tìm là 16

Đặt câu hỏi cho phần in đậm

1. My father has lunch at home every day

=> Who has lunch at home every day?

2. Minh goes to school with his friends

=> Who does Minh go to school with?

1:it often (rain) rains in the summer . it (rain) is raining now.

2: the teacher always (point) points at the black-board when he (want) wants to explain something.

3: mother (cook) is cooking some food in the kitchen at the moment , she always (cook) cooks in the morning.

4: always (meet)................ him on the corner of this street.

( Không có chủ ngữ thì sao làm được hả bạn ? Nhưng mk nghĩ là như thế này nè ! Chia ra 2 trường hợp :

1 . Đối với những ngôi như I , You , We , They và tên 2 người hoặc 2 vật thì đáp án sẽ là : meet .

2. Đối với những ngôi như He , She , It và tên 1 người một vật thì đáp án sẽ là : meets .

5: where are you (go) going now?-I (go) am going to the theater.

I'm very happy!

Viết lại câu sao cho nghĩa không đổi:

1) It is necessary to learn English well.

\(\Rightarrow\) Learning English well is necessary.

2) We should get up early every day

\(\Rightarrow\) We shouldn't get up late every day.

3) How wide is this room?

\(\Rightarrow\)What is the width of this room?

4) Don't forget to lock the front door before you leave.

\(\Rightarrow\)Be sure to lock the door before you live.

5) What is your date of birth?

\(\Rightarrow\)When is your birthday ?

6) Going swimming in thes summer is very interesting.

\(\Rightarrow\)It ' s interesting to go swimming in the summer.

7) Math is a more difficult subject than other ones.

\(\Rightarrow\)No subject is more difficult than Maths.

8) I am very glad to see you all again.

\(\Rightarrow\)It ' s very nice for me to see you all again.

9) What about going to the sea for a change?

\(\Rightarrow\)Let ' s go to the sea for a change?