TÌM TRỌNG ÂM KHÁC VỚI TỪ CÒN LẠI:( giải thích luôn )

Question 1. A. engineer           B. scientific           C. information      D. photography

Question 2. A. garden              B. village              C. July                  D. window

put a tick √ if the relative pronoun in the following sentence can be deleted, and put a cross X if is not ( chữa câu sai giúp mik luôn ak)

1. We lit a fire, which son dried out our clothes.

2. The report which son should have taken an hour and a half, took three hours.

3. The children who I was looking after were terrbly spoilt.

4. She thanked him for the kind help that she recevied.

5. There wasn't any directory in the telephone box from which I was phoning.

6. The man who was driving us didn't know the way.

7. The Smiths, whose house was destroyed in the explosion, were given rooms in the hotel.

8. The car which we hired from the airport broke down on the road.

9. My boss, who I really wanted to see, was too busy to meet anyone.

10. Mr. and Mrs.Jones, who were out playing cards, knew nothing of the burglary.

a) 2x-3y=1

    -x+4y=7

b) x+3y=7

    2x-3y=8

a) x+y=5  

    2x-y=1

b) 5x+2y=4

     x-2y=8

a) x-y=-5

     2x+y=11

b) x+4y=11

     5x-7y=1