---- Can I sit in the front row?
----Yes, you can take ________ seat you like.
A. whatever B. what
C. whichever D. which
Its hard to ________ the green beans from the red ones, because there are too many of them.
A. work out B. watch out
C. sort out D. set out
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
