They usually spend two hours _______ their homework every day.A. do B doing C to do
Mr. Yang teaches ______math and is very strict with us.
He has few friends and often feels lonely , _______he has much money.
I will go to Hangzhou sometime next week. Perhaps I _____visit you at that time.
In class , our teachers always stand______ us in order to hear us clearly.
-- The population of Zhengzhou is much than that of Shanghai.