單項選擇題
A.hope B.tohope C.hoping D.hopefully
A.depends on B.for condition that C.on condition that D.subjectto
A.confidential B.delieate C.secret D.sophisticated
A.goover B.haveread C.referto D.checkup
A.thankful，advise B.appreciate，advise C.appreciated，advise D.appreciating，inform
A.these B.- C.what D.when
A.enclose， B.enclose，you C.enclose，to you D.enclose you，
A.on，of B.at，with C.in，for D.with，at
A.of aposition，── B.at aposition，── C.in aposition，with D.at aposition，with
A.As request B.At request C.As requested D.At requested
A.which B.at which C.from which D.in which
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