Tìm tất cả các chữ số a và b để phân số là số tự nhiên.
VIẾT LẠI ĐỀ BÀI = TA
AI VIẾT TRC TICK NHÉ
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26.. It is a big school.
27. She favorite drink is apple juice.
28. Her family has four people.
29. The hotel is in front of the my house.
30. This house is the oldest in the street.
- Hc tốt!?
V. Complete the second sentence so that it has a similar meaning to the first one.( 2pts)
26. The school is big.
It ...is a school big................................................................................................
27. Apple juice is her favorite drink.
She....s apple juice..........................................................................................
28. There are four people in her family.
Her family…has four people……………………………………………………………………
29. My house is behind the hotel.
The hotel…is in front of my house………………………………………………………………………….
30. No house in the street is older than this house.
This house…is the oldest in the street…………………………………………………………………………
46.Nobody in the class is more clever than Sally.
47.The exam was not easier than at first.
48.Ha had a toothache yesterday so do I.
49.Is this the best motorbike?
50.We didn't go on our picnic yesterday because the weather was bad.
k mình nha bạn
1) He used to work in a small shop
2) No he didn't
3) He bought his own workshop in 1938
4) He used to make spare part for planes
5) Frank's fatory had 728 people
IX. Read the passage and answer the questions.
Frank is now the head of a very large business company, but as a boy he used to work in a small shop. It was his job to repair bicycles and at the time he used to work fourteen hours a day. He saved money for years and in 1938 he bought a small workshop of his own. During the war, Frank used to make spare part for planes. At that time he had two helpers. By the end of the war, the small workshop had become a large factory which employed seven hundred and twenty-eight people. Frank smiled when he remembered his hard early years and the long road to success.
* Questions:
41. Where did Frank use to work when he was a boy?
® Frank used to work in a small shop.
42. Did he use to work forty hours a day?
® No, he didn't
43. When did he buy his own workshop?
® in 1938
44. What did he use to do during the war?
®, Frank used to make spare part for planes
45. How many workers were there in Frank’s factory at the end of the war?
® there were seven hundred and twenty-eight people in Frank’s factory at the end of the war
VIII. Read and circle the best option A, B, C or D to complete the passage.
Children in Vietnam go to school when (36) ______ are 6 years old. From 6 to 11 they are in primary schools. From 11 to 17 boys and girls in Vietnam go to secondary schools. In secondary schools they have a lot of (37)______. They learn (38)______ lots of different things. In Vietnam children (39)______ go to school on Sunday. They to stay at school all day. They love to have lunch with their friends. (40)______ day at school is a happy day for them.
36. A. he B. they C. you D. we
37. A. class B. studying C. subjects D. subject
38. A. about B. to C. by D. from
39. A. often B. always C. usually D. never
40. A. each B. a C. other D. others
1.last
2.was
3.were
4. was
5. you
5. didn't
~ Chắc z and Hok T ~~~
1A/ last
2B/ was
3B/ did
4A/ thought
5B/ you
6A/ didn't
Đáp án:
The denominator is 45 so it is divisible by 5 and 9 divisible by 5 numbers ending in 0 or 5 divisible by 9 sum of digits divisible by 9 is divisible by 9 consider eg b = 0 we have 1a830 divisible by 9 => 1+a+ 8+3+0 is divisible by 9 => a = 6
Hok tốt
để ps 1a83b/ 45 thì 1a83b phai chia hết cho 5 và 9. Mà để chia hết cho 5 thì b phải bằng 5 hoặc 0
Nếu b= 0 thì 1a830 chia hết cho 9 ta có: (1+ a+ 8+ 3+ 0) chia hết cho 9= (12+ a) chia hết cho 9 => a= 6
Nếu b= 5 thì 1a835 chia hết cho 9 ta có: ( 1+ a+ 8+ 3+ 5) chia hết cho 9= (17+ a) chia hết cho 9 => a= 1
Với b= 0 thì a= 6
Với b= 5 thì a= 1