Jack is interested in robots, so he went to the restaurant in Liaocheng ___________ he heard that there were robots working as waiters there.
—Can you tell me _____when the teacher came into the classroom? —Sorry, I don’t know.
________ weather it is! We can’t go out to have a picnic.
— does it take you to watch TV? —About forty minutes.
Our rooms __________ by my mother three times a week.
Julia ________drinking water over an open fire when I saw her.