________ if you want to do something, or you won’t be able to do it well.
The boy wanted to ride his bicycle in the street, but his mother told him _______.
We looked everywhere for the keys, but they are nowhere _______.
He was reading his book, completely _______ to the world.
Mum, why do you always make me eat an egg every day?” “________ enough protein and nutrition as you are growing up.”
“Where is David?” “He is upstairs ______ ready to go out.”