The dictionary ________ me more than 100 yuan.

---There’s someone knocking on the door. Who _________ it be?---It must be John. He promised to be here at 8:00.

You    eat the soup if you don't like it.

A hard-working man        become a great scientist, but a great scientist        be a hard-working man.

 —Listen! Is that Pingping playing the guitar?  —No. It __________be Pingping. He has gone to Beijing.