A talk on Chinese history ________ in our school next TuesdayAre you interested in it?— Sounds goodDo we need to buy tickets?

The school makes a rule(规定) for the students to turn off lights at 10 p.m.

sent, how we can look after ______ old is becoming ______ hot and severe issue.

The actions and words of celebrities（名人）can have a great because many people may follow them. So they should pay more attention to their behavior and speech.

At last, Tom made the baby ________ and began to laugh.