—I’m terribly sorry that I made your clothes dirty.
—__________.
| A．Never mind | B．Don’t mention it | C．That’s right | D．Sorry |
Never before _______ seen anybody who can play tennis as well as Robert.
| A．had she | B．she had |
| C．has she | D．she has |
______ her roommates, the girl stepped into the room quietly.
| A．In order to not wake up |
| B．Not in order to be found |
| C．In order not to disturb |
| D．So as to not see |
_________ environmental damage is done, it takes many years for the ecosystem to recover.
| A．Even if | B．If only | C．While | D．Once |
----Where did you get to know her?
----It was on the farm ________ we worked.
| A．that | B．there | C．which | D．where |
----What a mistake!
----Yes, I _______ his doing it another way, but without success.
| A．was suggesting | B．will suggest |
| C．would suggest | D．had suggested |