Cho tam giác ABC cân tại A .Trên cạnh AB lấy điểm D , trên tia đối của tia CA lấy điểm E sao cho BD = CE ,gọi I là giao điểm của DE và BC qua E . Vẽ đường thẳng song song AB cắt BC tại F.
a,Chứng minh: ∆ BDI = ∆ FEI
b,Chứng minh : I là trung điểm của DE
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Circle the letter before the correct answers.
1. I don't like coffee.Nam doesn't like it .....
A. so. B. too. C. either. D. neither.
2. I like playing badminton.- ........does Mai .
A. Neither. B. Either. C. Too. D. So
3. I feel down and .....my arm
A. to hurt. B. hurted. C. hurting. D. hurt
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Circle the letter before the correct answers.
1. They ......... English last Monday .
A. don't learn. B. didn't learn. C. didn't learned. D. won't learn
2. What kind of.......do you like ? -I like cartoons.
A. films. B. books. C. pictures. D. magazines
3. He ........to the zoo last Sunday.
A. went. B. goes. C. go. D. to go
4. You should ......... your hands before meals.
A. to wash. B. washes C .washing. D. wash
5. How far .....it from Ha Noi to Tuyen Quang?
A. is. B. are. C. was. D. were
6. Everyday Mr.Nam ....in the field from 6 a.m to 5p.m.
A. works. B. worked. C. working. D. work
7. Yesterday , she went to the doctor .....she was ill.
A. because. B. and. C. then. D. but
8. How do you feel today? I feel much .....,thank you.
A. good. B. well. C. best. D. better
9. Don't ....to write to me ,Lan.
A. forgeting. B. forgot. C. forget. D. to forget
10. Vietnamse students have ....... vacations than American students.
A. few. B. longer. C. most. D. less
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