They had a pleasant chat _____ a cup of coffee．

ory is about an old Indian villagerand an American tourist in India, _______ understanding the other’s language.

ou’ve got a "D" in chemistry．____—Well, I findthe subject hard and I think I’ll drop it for history next term．

When you get on stage for the first time, you may be surprised by ______bright the lights are

If ______ to look after luggage for someone else, inform the police at once.