Напиши сущ во мн числе one cow - two

1)i have to work hard to improve my english

2)joan doesn’t   have to go.she can stay here.

3)i’m   sorry   i’m late.i had to do the shopping.

4)i think the spacemen has known english.

5)does she have to read this rule?

6)tom doesn’t  have to use a computer.

7)you have to know english to understand people.

8)does mary have to help ann to study english?

9)what time do you have to get up?

10)has your teacher corrected your homework?  

1.as in england estimates put numbers or letters

2. how many minutes the lesson last in the english school

3. how many years children studying english in primary school

4. at what age children in britain complete primary school

5. does english school has a number

6. at what time in england begins a lesson