A.Who are you? | B.Hold on please. |
C.Speaking, please. | D.Are you Mr. Black? |
A.while | B.when | C.since | D.once |
A.being created | B.creating | C.created | D.having created |
A.relieve | B.release | C.collect | D.investigate |
A.nothing | B.none | C.any | D.much |
A.notice | B.feature | C.signal | D.mark |
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