Bài 3. Viết các câu sau ở thể khẳng định, phủ định và nghi vấn

1. (+) We are working on the new show right now

    (-) .....................................................................

    (?) ......................................................................

2. (+) ...................................................................

    (-)  I'm not talking on the phone at the moment

    (?) ...............................................................

3. (+) .......................................................

    (-) .....................................................

    (?) Is he running very fast?

4. (+) Julia is baking a chocolate cake at the moment

    (-) .......................................................................

    (?) ................................................................

5. (+) ..........................................................

    (-) ......................................................................

    (?) Are Tony and Kaity helping the teacher right now

Bài 10:

18. 5/8 - (-2/5) - 3/10

20. -52 + 4/37 + 17/12 - 41/37

Bài 10:

11. 1/2 - (1/3 + 1/10)

12. 1/12 - (-1/6 - 1/4)

13. 1/2 - (-1)/3 + 1/23 + 1/6

14. 2/5 + (-4/3) + (-1/2)

16. 3/5 + (-4/3) + (-3/4)

17. (-7/2) + (-2/3) + (-3/5)