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 well.

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