—It is said that Jack is very rich and is always changing his private cars.What is he?— ,I am not sure.
He commanded that all the gates __________.
There is a limit ____ my patience.
How can we ____ all these flies in the kitchen?
If you ____ do as I tell you , you ____ go to the party .
Li Ling was a diligent boy . He ____ go to school though it was raining hard .