A.feeling frustrated | B.feel frustrated | C.feel frustrating | D.felt frustrated |
A.getting away from | B.getting away with | C.get away from | D.get out of |
A.to offer | B.offering | C.offered | D.to be offered |
A.Having explained | B.Having been explained |
C.Though it was explained | D.It was explained |
A.finishing | B.to finish | C.finished | D.had finished |
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