18. Don’t try to cheat the taxman(税务人员); you’ll never ______it.
Never in my wildest dreams ___ these people are living in such poor conditions.
The child tiptoed quietly to the bird. ___ into the forest when he was about to catch it.
Not until I went through his paper ___ what rapid progress he had made in writing.
In front of the classroom___
___sign the contract unless you are sure you understand it.