It’s good for health to sleep with the windows _______ in hot summer.
—Wow! Your school is so beautiful!—Thank you! It _____ last year.
The teacher told us _____ to the recorder and read the dialogue three times.
Although they were tired, they still went on _____.
_____ you tell me how to use this digital dictionary?
We _____ more than 1,200 English words already, do you know?