How tired he looks!—Yes. He spends____time____his work.[ ]

What’s wrong with my son, doctor?— _________. Just a cold.

Dad, please tell me when Mum_____. I miss her very much. —She will return when she_____ her task. And she will bring a nice present for you.

This kind of bamboo is not suitable_____pandas _____ eat.[ ]

_____that Ding Junhui, an