The students were told to _____ their English before going abroad.
On the very first day of the war, the president _____ a state of emergency.
Patience is a kind of quality—and that is ____ what it takes to do anything well.
— Susan, go and join your sister cleaning the yard. — Why ___? John is sitting there doing nothing.
The teacher doesn’t permit ________ in class.
If you keep on writing, you will have brighter future, likely to become J. K. Rowling.