We rushed to the football court, only to see a sign ________ into the ground reading PERIODIC MAINTENANCE (定期维修).
—— Nacy_________ the letter from her mother. —— No, she can’t have. The postman hasn’t come yet.
I don’t think he_______ a new bike.
Tom_______show his exam results to his parents.
Let’s clean the classroom, _______?
Children________in public very often.