Exercise 1: Mark the letter A, B, C or D to indicate the correct answer to each of the
following questions.
1. The first ________ we have on Monday is English.
A. lesson B. uniform C. school D. classmate
2. John studies in a/an ______school. Students there are from different countries in the
world.
A. boarding B. international C. village D. public10
3. My brother doesn’t ________ badminton in the evening.
A. play B.do C. have D. study
4. We are having dinner in the________at the moment
A. bathroom B. dining room D. bedroom C. hall
5. We live in a town house, but our grandparents live in a ________ house.
A. villa B. country C. apartment D. city
6. Please turn the ________ on. It’s so hot in here.
A. fan B. light C. television D. faucet
7. Which do you prefer, straight hair or ______ hair?
A. big B. small C. curly D. slim
8. Diana likes painting pictures, and she draws very well. She is ______.
A. shy B. kind C. funny D. creative
9. ________morning exercise is good for you.
A. Doing B. Studying C. Playing D. Having
10. My mother is baking a cake in the ________for my birthday.
A. bathroom B. dining room C. kitchen D. bedroom
11. Mai ________dressed at six thirty every morning.
A. does B. brushes C. gets D. lives
12. At lunchtime, you can ________ lunch in the school canteen.
A. go B. be C. have D. do
13. She usually________English vocabulary every morning.
A. doing B. having C. studies D. plays
14. My father is ________a cup of coffee with his colleague in the living room now.
A. playing B. studying C. doing D. having
15. ________CD player is new. He bought it yesterday.
A. Charles B. Charles’s C. My D Her
16. The kids are ______ their bikes around the playground now.
A. playing B. riding C. taking D. driving
17. I often ________ my homework ________ school.
A. study - at B. am doing - after C. do - after D. does - before
18. Nam ________ football now. He’s tired.
A. doesn’t play B. plays C. is playing D. isn’t playing
19. School ________ at 4.30 p.m every day.
A. finish B. finishes C. go D. have
20. This is ________ house. It is large and very beautiful with a big flower garden.
A. Lan B. he C. Lan’s D. she

Tìm số nguyên tố p sao cho p+8 và p+16  đều là các số nguyên tố
Mk cần cả lời giải ạ

Tìm số nguyên tố p sao cho p+8 và p+16  đều là các số nguyên tố

A=1+3+3+3^2+3^3+...+3^97+3^98.
a. Chứng minh A chia hết cho 13; 20.
b. Chữ số tận cùng của A là bào nhiêu
mn giúp mk vs><!!!

Một hình bình hành có một cạnh dài 10cm và chu vi bằng 30cm. Cạnh còn lại của
hình bình hành là