There is ______ “s” and ______ “u” in the word “bus”.
Who listens ________, Tom, Jack, or Bill?
Tom and Mike are in ___________ school, but they are in ________classes.
---- ________does Nancy usually go to a buddy club? ---- Once a week.
Those boys _________ English at the English corner now.
----What do you think of the weather in Nanjing? ----It’s warmer than________ in Beijing.