I didn’t see her in the meeting room this morning. She ___ at the meeting.

Do you want to be healthy ______. Smiling can help you stay healthy.

It’s all ______ you whether you go or not.

How old can you guess your new English teacher is— It’s hard to say．But I guess him to be _________ between 35 and 40.

Young people usually_________ city life tocountry life while old people _______ enjoy country life.