I have recently become very worried about my 15-year-old son, Nick. Although he was never brilliant at school, he used to get reasonable good marks. (1) ______.
He used to be such a good swimmer that he won several prizes. But now he has given up training. And instead of neat clothes he used to wear, all he ever puts on is the same pair of shabby of old jeans and a dirty sweatshirt.
(2) ______. Nick was in the kitchen. The radio was so loud that he didn’t hear me come behind him. My handbag was on the table. (3) ______.
We had a terrible row. Finally, he broke down and confessed everything. He has been going every day to a big amusement arcade near his school and playing electronics games with nick names like Space Warrior and Alien Invaders. I had always thought they were harmless. (4) ______.
He has promised he won’t go there again, but I think he’s too addicted to stop. (5) ______. What can I do to help him?
A. But now I realize that he’s so hooked on them, he’ll even steal from his own mother in order to pay for the habit.
B. Even if he wanted to, he couldn’t - and he doesn’t .
C. I often leave it there so that I won’t forget it when I go out.
D. He had taken some money out of it and was just about to put it in his pocket.
E. But that isn’t all. Last Sunday, I got up earlier than usual.
F. But now his work has become so bad that his teachers say he is just wasting his time there.
cho tam giác abc vuông tại a.trên tia đối ab lấy điểm e sao cho a là trung điểm của be a)chứng minh tam giác abc=tam giác aec b)vẽ đường trung tuyến bh của tam giác bec cắt cạnh ac tại m.chứng minh m là trọng tâm của tam giác bec và tính tỉ số cm và ca MÌNH CẦN CHỨNG MINH M LÀ TRỌNG TÂM CỦA BEC THÔI NHA MNG GIÚP MÌNH VỚI
C