Tính(tính nhanh nếu có thể)

(-4.7) . 6,9 + 3,1 . (-4,7) - (-15,5) + 0,5 . (-3)^2

I.Complete the sentences using going to or will

1.Look at those clouds. It........ snow.

2.Don't tell anyone,........ you?

3.I think he ........... (like) this book.

4.I have a lot of tests next week so I .......(study) in the library after school.

5.I ........(study) medicine next year

6.It .......(probably/rain) tomorrow

7.Those tomatoes look delicious.I .....(buy) some for dinner

8.I...... (not/buy) you a new phone if you fail your English in library after school

9.Sorry,I am not free tomorrow.I.....(visit) my best friend

10.We ......(wait) in the shelter until the bus comes

11.I don't think you .......(have) any problems when you land in Boston

12.Wait! I ......... (drive) you to the station

13.I .........(see) my mother in May

14.We ......(have) dinner at seaside restaurant on Sunday

15.It .....(snow) in Brighton tomorrow evening

Tính

S=5^3+5^5+5^7+..........+5^79