When the clerk at the counter was rude to her, she and told the clerk to speak to him.

Employees in a chemical factory should be given _____ training in safety.

I hear Tom ________ playing games.-________ no wonder he is easy to feel sleepy in class.[ ]

Some of my friends eat with their eyes. They prefer to order what _____ nice. What about you— I think it’s good to eat some fresh vegetables.

In the past, ice used to ______ used to ______ the air in a room