China has made efforts to respond to _______ climate change, and set targets to control greenhouse gas emissions by 2020.
"_____ your meeting is!" he offered them his sincere congratulations.
From my point of view,the theory thatby the scientist is not quite scientific.
Tom’s mother often requires that hemore time in studying English every day.
We can't go out,for it is getting dark and,it is raining.
Don't put your books everywhere.Keep them.