--- Catherine, I have cleaned the room for you. ---Thanks.You _______ it.I could manage it myself.
Perseverance is a kind of quality, and that’s _____ it takes to do anything well.
Do _____ you think is right _____ difficulties you may have.
She asked if any of the passengers knew _____ about machines or at least how to drive a car.
We all think that he is stronger _____.
____ the weather was fine, I opened all the windows.