Who is the tallest boy?—It ______ be John.. John is of medium height.
Have you ever been to Qufu?—Yes. I went there last year. It’s a very _______ place.
How much did you_______ for the new ipad? –It _______ me 5000 yuan.
The teachers have _______ holidays and lots of _______ time.
Is this ruler?No, is over there(在那边).