— How many left-behind children are there in your class? —            .

He is very hungry because he went to school      breakfast .

—Tom, please wash the fruit more times. --I see. People use chemicals______on their fields.

— _____ are the apples?   —Ten yuan a kilo. ______ would you like?

---Do you often take cold showers in winter?---No. But I _____ when young.