The children were warned of not being too ______ about things they were not supposed to know.
At no time the first to use the nuclear weapon.
The teacher gave the books to all the students except who had already taken them.
Bill is good at playing football,but when comes to basketball,he knows nothing.
It is not so difficult to learn program well. you need is patience and persistence.
Be quick,Tom!I need pen to mark the page.Can you get for me?