Cho tam giác ABC đều. Trên nửa mặt phẳng bờ AB không chứa C vẽ tia Ax sao cho góc BAx nhỏ hơn 60 độ; Trên nửa mặt phẳng bờ AC không chứa B kẻ tia Ay sao cho góc CAy nhỏ hơn 60 độ và góc BAx bằng góc CAy. Lấy D thuộc Ax, E thuộc Ay sao cho AD = AE. Gọi BD cắt CE tại G. Chứng minh: a) BD =CE b) Tam giác BCG cân; tam giác GDE cân c) AG vuông góc BC và AG vuông góc DE d) DE//BC Mình cần gấp lắm ạ! Cả hình vẽ nhé!

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Put the verbs in the brackets into correct form of Simple Future/Be going to/Present Continuous.( và giải thích vì sao chọn ) 1. I (be) ................................... on holiday in August. 2. Please hurry up! We (not have) ................................... time for the meal. 3. We (see) ................................... her off at the station at seven. 4. I don’t think the exam (be) ................................... difficult. 5. I (call) ................................... you tomorrow. 6. The international conference (open) ................................... next week. 7. There’s a postbox over there. I (post) ................................... these letters. 8. You (open) ................................... the door? 9. You are so busy, so I (peel) ................................... the potatoes. 10. I’m going out. I (post) ................................... these letters. 11. You (come) ................................... to lunch? 12. I (punish) ................................... you if you do that again. 13. How pale that girl is! I’m sure she (faint) ................................... 14. Tom (not pass) ................................... the examination. He hasn’t worked hard enough. 15. You still haven’t cleaned your room, Tom. / OK, I (do) ................................... it tomorrow. 16. Look out! We (crash) ...................................! 17. Charles (have) ................................... an accident if he drives like that. 18. My brother (come) ................................... to see me on the weekend. 19. We (have) ................................... a party on Sunday. Would you like to come? 20. We (go) ................................... to the movie tonight.