问题
选择题
--____are you staying in Ottawa?
--About two weeks.
A．How many
B．How long
C．How far
D．How soon
答案
答案：B
疑问词辨析. How many多少个; How long 多长; How far 多远;How soon多久.根据答语About two weeks.大约两周,可提问的是时间长短,故用how long.选B.