HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
1.I have seen her before.
2.I saw her last year.
3.Tom has never been in Ha Noi.
4.I have read the novel written by Jack London several times before.
5.What did you do yesterday?
6.Did you watch TV last night?
7.She was born in 1980.
8.He has written a book since last year.
9.Mr Green has taught English in this school since he graduated from the university in 1986.
10.How long have you learnt English?
11.I was invited to her party last night.
12.My car was repaired yesterday.
Cho tam giác ABC nhọn có AB>AC.Hạ AH vuông góc BC.Tia phân giác góc BAC cắt BC tại M .Chứng minh rằng điểm H nằm giữa B và D A B C H M