At the beginning of class, the noise of desks _____ could be heard outside the classroom. 

---What did the old man say?---Oh, he told us _________ football in the busy street.

Oil prices have risen by32 percent since the start of the year,_____a record US $57.65 a barrel on April 4. 

 With online course Crazy English has over 20 million students all over China _______ the class through the Internet .

The man_______in a blue jacket at the party was a doctor.