I. Fill in the correct particles
1. I was taken _______ by his offensive manner.
2. He wanted an energetic hobby so he took _______ water skiing.
3. I’m sorry, I take _______ what I said. You’re not lazy and selfish.
4. My mother takes _______ foreign students to make extra money.
5. The vice president took _______ the company when the president retired.
6. I took you _______ your brother from a distance. You look so alike.
7. She takes _______ her mother, they have the same eyes.
8. He was talking too fast and we didn’t manage to take _______ the whole lecture.
9. They’re taking _______ extra staff at the car factory.
10. Tom’s taken ______ fishing; it’s a very relaxing pastime.
11. You take ______ your father; you’re a lot like him.
12. Simon is too young to take ______ such a big responsibility
13. Everyone was taken ______ when the manager stood up and walked out of the meeting.
14. As the plane took ______ we had a wonderful view of Hong Kong.
15. Why don’t you take some time ______? You look exhausted.
16. I was taken ______ by her; she fooled me completely.
17. She had to take her skirt ______ because she had lost a lot of weight.
18. This is quite complicated, so you might not take ______ all the information the first time.
19. Work is going well; we’ve taken ______ a lot of new clients.
20. If washing powder doesn’t take that spot ______, maybe bleach will.
21. When we heard he had no place to stay, we offered to take him ______.
 

R có công thức oxit R₂O_y trong đó oxi chiếm 47,06% khối lượng. Biết phân tử khối của R₂O_y  là 102.

a. Xác định R, vị trí của R trong BTH.

b. Hòa tan 3,06 gam oxit này vào 100ml dd H₂SO₄ 1,5M. Tính nồng độ mol dd thu được sau phản ứng.