When and where _______ we meet—Let’s make it 3:00 at my home.

Each year quite a lot of food ______ around the world. It’s really time for us to do something.

The teacher suggested the dictionary at once.

English is _______ useful language and it’s also_______ important subject.

When I entered the step-classroom(阶梯教室), the lecture _________ and the people _________ attentively.