It’s four o’clock in the afternoon. The boys __ in the pool.
The students told us _____________last summer vacation.
Trees ______every spring in North China.
—Would you like ______for a walk with me after school?—Sure, I’d love to.
I _______ my homework when the lights in my room went out last night.
—Is there any ink in the bottle, Linda?—No, we ________out of it already.