________ the classroom, the teacher found all the parents already______ there.
| A．Entered; seated | B．Entering; seating |
| C．Entered; seating | D．Entering; seated |
He smiled politelyMary apologized for her drunken friends.
| A． | as | B． | if |
| C． | unless | D． | though |
George returned after the war, only _______ that his wife had left him.
| A．to be told | B．telling |
| C．being told | D．told |
It doesn’t matter ________ you pay by cash or credit card in this store.
| A．how | B．whether |
| C．what | D．why |
My first _______ of him was that he was a kind and thoughtful young man.
| A．expression | B．attention |
| C．satisfaction | D．impression |
Maria has written two novels, both of ________ have been made into television series.
| A．them | B．that |
| C．which | D．what |