jeans were invented over 100 years ago, they’re still in fashion today.

—Your French is so good. How long have you been in France?
—      I was five.

Wu Yi will help with the housework        he gets home after school.

You’d better travel around Nanjing with a local tour guide        you want to know more about its culture.

In Chongqing, you can often see many people dance outside together if it        in the evening.

—Do you know when Jay          here tomorrow?
—Sorry, I don’t know. But when he          here tomorrow, I’ll tell you at once.

We will go to Tian’anmen Square to watch the raising of national flag if it         tomorrow.

We will go to Tian’anmen Square to watch the raising of national flag if it         tomorrow.

Turn off the water while you         your teeth or washing your hands.

It’s unwise to give a child         he or she wants.