We all should make a contribution to ______ our environment.
Let’s take ______ photo! Everyone, cheese!
—It’s too hot. Why not go swimming with us?—___________ .
In our school, _____ students like English, but _____ of them can speak English smoothly.
We _________ for a picnic if it _________ rain this Sunday.
—_________ sweet music! Do you like it?—Mm, it ___________ beautiful!