какую роль в победе над фашистами в Великой Отечественной Войне сыграл второй фронт в 1944?

Употребите глаголы , данные в скобках , в Present , Past  или Future indefinite.

1. i always ( to get ) up early on sunday .

2. He (not / to do ) his homework properly .

3. Terry ( to dance ) very well.

4. Shelly ( to read ) a new novel of this autthor yesterday .

5. Val ( not / to know ) what to do in these circums tances .

6. What time you usually ( to have ) breakfast ?

7. What time he ( to have ) dinner yesterday ?

8. i hope we ( to meet ) tomorrow .

9. You ( to call ) on me next Sunday?

10. What does he do ?

Выясните при каких значениях а уравнение имеет два корня:

a) ax^2-(a+1)*x+1=0

b) cx^2-(c^2+4)*x+4c=0