— ?—They are reading books.A、What do they doB、What did they doC、What are they doing
---My mother is ill.---- ________________
---- I have a sore back. ----You should ______ down and rest.
It’s important _____ in good health
--Mary failed the exam again. ---Sorry to hear that. We should do something to _____.
She‘s outgoing. She never minds ______ to a boy.