đẹp lắm lun á

trick -of-treat

21. Every morning, my father (have) has a cup of coffe but today he (drink) is drinking milk.
22. At the moment, I(read) am reading a book and my brother (watch) is watching TV.
23. Hoa (live) lives in Hanoi ,and Ha (live) lives in HCM City.
24. Hung and his friend (play) are playing badminton.
25. They usually (get up) get up at 6.oo in the morning.
26. Ha never (go) goes fishing in the winter but she always (do) does it in the summer.
27. My teacher (tell) is telling Hoa about Math.
28. There (be) are animals in the circus.
29. Does he (watch) watch TV at 7.00 every morning?
30. What does she (do ) do at 7.00 am?

 neu lop thu nhat trong them 80 cay lop thu hai trong them 40 

Cho R = 1+2+..+2^6

  2R = 2(1+2+..+2^6) = 2+2^2 +...+ 2^7

2R-R = (2+2^2 +...+ 2^7)-(1+2+..+2^6) = 2^7-1 = 127

=> S = 2/3.127 = 254/3

Write N for Now and F for Future.

1.Listen! Is that our telephone ringing? ...N...

2. They're going to the Fine Arts Museum this Saturday. ...F...

3. Where's Mai? He's doing judo in Room 2A. ...N...

4.She's travelling to Da Nang tomorrow....F...

5.Are you doing anything this Friday evening? ...F...

6. Yes,I'm watching a film with my friends ....N...