―Are these your friends?―Yes, .
—What a heavy rain! Will it last long, Simon?—__________. We’re getting into the rainy season now.
To those disabled athletes, the most important thing is _______ win a gold, ______take part.
—He’s never seen the film Rio2 (里约大冒险2) before, _________ he?—_________. He went to see it last week.
Let’s ________ these bottles into different boxes for different use.
It’s necessary _________ us _________ more trees in spring every year.