题干
It's 9 p．m．They now，but they often to bed at 10 p．m．
A：sleep；go
B：are sleeping；go
C：are sleeping；going
答案(点此获取答案解析）
B
It's 9 p．m．They now，but they often to bed at 10 p．m．
A：sleep；go
B：are sleeping；go
C：are sleeping；going
