Lập trình tính và đưa màn hình tổng các số lẻ thuộc đoạn nguyễn M đến N, (M<N)

Cho đoạn lệnh IF (X>Y) {X= X - Y} else Y= Y - X; <câu lệnh 1> ở đây là gì?

A. X>Y

B. Y=Y - X

C. X = X – Y

D. Không xác định

Xác định những từ in đậm sau là danh động từ (Gerund) hay là phân từ hiện tại (present participle). Viết G (nếu là danh động từ) và p (nếu là phân từ hiện tại).

1. I think you should start practising now! _____

2. Listening to music after work helps me relax my mind _____

3. It's a waste of time playing computer games______

4. There are some people waiting to see you, Sir. _____

5. She thought of what he had said, smiling happily _____

6. My mother is in the sitting room______

7. The girl next door is playing the piano at the moment______

8. The thing I like best, chatting with friends, always makes me relaxed _____

9. The man driving the red car is my husband _____

10. My sister said she was bored with doing the same things every day _____

11. The book is so interesting that I can't put it down _____

12. Feeling so hungry, I went down to the kitchen to find anything to eat_____

13. When he was walking on the pavement, he ran into me_____

14. The missing child was last seen plauing near the river_____

15. I found a coin Iying on the sidewalk _____

Chia dạng đúng của động từ trong ngoặc ở dạng danh động từ/phân từ hiện tại danh động từ hoàn thành và phân từ hoàn thành

1. My boss spends two hours a day (travel)______ to work.

2. (Swim) ______ is my favorite sport.

3. I enjoy (play)________tennis with my friends.

4. In spite of (miss)_______ the train, we arrived on time.

5. ______ (complete) the book, he had a holiday.

6. The man denied (be)________at the scene of the accident last night.

7. ______(park) the car about a kilometer from the stadium, I walked the rest of the way.

8. (take)________the umbrella with him, he went out in the heavy rain.

9. I have to work hard these days. I am always busy (do)_______my homework.

10. I suggested (spend)_______ the day in the garden.

11. Why do you keep (look) back? Are you afraid of (be) ______ followed?

12. After (find)________a hotel, we looked for some place to have dinner.

13. (Feel) ______ tired, I went to bed earlyể

14. (finish) ______ the housework, Tâm Vy went for a walk.

15. We must avoid (hurt) ______ other people's feeling.

16. (Learn) ______ a foreign language takes a long time.

17. (Fail)______ twice, he didn't want to try again.

18. Jack admitted (steal) ______ the money.

19 (open)______ the drawer, she took out a book.

Xác định những từ gạch chân sau là danh động từ (Gerund) hay là phân từ hiện tại (present participle). Viết G (nếu là danh động từ) và p (nếu là phân từ hiện tại).

1. I think you should start practising now! _____

2. Listening to music after work helps me relax my mind _____

3. It's a waste of time playing computer games______

4. There are some people waiting to see you, Sir. _____

5. She thought of what he had said, smiling happily _____

6. My mother is in the sitting room______

7. The girl next door is playing the piano at the moment______

8. The thing I like best, chatting with friends, always makes me relaxed _____

9. The man driving the red car is my husband _____

10. My sister said she was bored with doing the same things every day _____

11. The book is so interesting that I can't put it down _____

12. Feeling so hungry, I went down to the kitchen to find anything to eat_____

13. When he was walking on the pavement, he ran into me_____

14. The missing child was last seen plaving near the river_____

15. I found a coin Iving on the sidewalk _____

Cho tập hợp A = {1,2,3,4,5,6,7,8,9}. Từ A lập được bao nhiêu

a. số có 4 chữ số khác nhau chia hết cho 2

b. số có 4 chữ số chia hết cho 6

c. số có 4 chữ số khác nhau bé hơn 4326

d. số có 4 chữ số khác nhau luôn có mặt hai chữ số 1 và 5 đúng cạnh nhau