A.to improve; that | B.improving; when | C.to improve; when | D.improving; that |
A.worsening | B.worsened | C.gone bad | D.went bad |
A.sharpen | B.being sharpened | C.sharpening | D.to sharpen |
A.eat | B.eaten | C.to eat | D.to be eating |
A.to be e-mailed | B.e-mailed | C.be e-mailed | D.being e-mailed |
A.having affected | B.has been affected |
C.affected | D.has affected |
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