Exercise 4. Поставьте глагол в нужную форму (Do & Does).

1. They (to finish) their lesson at ten o'clock ?
2. He usually (to walk) home after work.
3. He (not to work) hard at his German.
4. Whose working day (last) six hours ?
5. How long your working day (to last) ?
6. This engineer usually (to return) home at seven.
7. They (know) English very