There is _____ pollution in the world. We must stop it.
A. much too
B. too many
C. too much
It’s important _____ in good health
| A．keep | B．keeping | C．to keep | D．keeps |
--Mary failed the exam again. ---Sorry to hear that. We should do something to _____.
| A．cheer on her | B．cheer up her |
| C．cheer her on | D．cheer her up |
She‘s outgoing. She never minds ______ to a boy.
| A．speak | B．spoke | C．speaking | D．to spoken |
I guess Peter and his sister Sally enjoyed __________ at the dancing party.
| A．myself | B．himself | C．herself | D．themselves |
Let’s ____planting the trees until tomorrow. I think it’s going to rain.
| A．put on | B．put up | C．put off | D．put down |