It’s neither aliens nor a rare disease ________ will threaten the human race in the future, but climate change.

Why has Mr. Green been busy going to the library recently? — _____ ready for the public speech. [ ]

She always thought that he was a stupidboy, so she was always ____ patiencewith him.[ ]

What does a doctor say if you caught a cold—Don’t worry. .

May I go and play with Dick this afternoon, Mum?No, you can’t go out _______ your work is being done