С третим был ступор, ибо хз, что конкретно спрашивалось...На абсолютную правильность не претендую, но чем могла помогла)
1.How many times a week does Yuri play tennis?
-three times (a week)
2. How often does Sonya have English lessons?
-twice a week
3.Is there a new student in our class?
-yes (?)
4.At what time does Nina not come home from school?
-at four o'clock
5.How many books are in my school bag?
-five
6. On what day do we not get up early?
-on Sunday