People generally believe that women are more emotional than men, but in my experience that often isn’t the ______.
Don’t leave the water ______ while you brush your teeth.
He will _______ his uncle’s business when he is mature(成熟的) enough to deal with the public relations.
-- Why do you walk so strangely? --- This is ______ I fell over myself accidently yesterday and my left leg got hurt.
----Where can I stay at noon, Sir?----It depends. You can stay ____in the classroom __in the dormitory.
The river is said __________ in a fire during the past 10 years.