He is_____American.I’m_____E nglish.
Look! A large group of birds are flying __________the mountain!
It’s important for us to keep food __________in the fridge, especially in summer.
-We have 7 people here , but the car only has 5 seats.-I think we need to solve this __________now.
Her son began to play __________piano when he was only three. Now he’s very good at it .
—I'm sorry to keep you waiting for me so long.— .