A.at where | B.which | C.in which | D.when |
A.writes | B.wrote | C.has written | D.had written |
A.hold , on | B.hold , back | C.hold , up | D.hold , out |
A.dates from; very valuable | B.dating back to; of great value |
C.dated back to; of much value | D.dating from; very value |
A.It | B.As | C.What | D.That |
A.Smoking is allowed | B.is smoking allowed | C.is allowed smoking | D.does smoking allow |
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