Manylakesandrivershavebeen()byindustrialwaste.
A. public
B. put
C. polluted
D. pollutE
Unfortunately,thehatIhadjustboughtwasnolonger()fashion.
A.
in
B.
on
C.
at
D.
up
Ourbossisleavingonatripandneedsthosepapers().
A. urgently
B. urgent
C. urgents
D. urge
Thechildrenwere()intogroupsforthegame.
A. separating
B. separated
C. separation
D. separates