а)
1. Does his son go to school?
2. Did the ship arrive atthe port yesterday?
3. Will the dockers start the loading in 2 hours?
4. Do the crewmen know English well?
б)
1. His parents don't speak French.
2. They didn't finish the unloading in the afternoon.
3. It won't rain tomorrow.
4. My brother doesn't like travelling.