--What do you think of Tom？--He is a man of______words. He always stays alone(独自地).

Li Xing’s illness(病) is very_____. You must take his illness ______. 

—______ does your cousin usually go to work on foot?—He says it’s good for his health. 

The girl was flying a kite ____________ her father came back.

Bob is good at all the subjects at school,               science.