單項選擇題No discount will be granted()you place an order for more than 1000 dozen.

A.if
B.unless
C.whether
D.butfor


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1.單項選擇題When yon()an agent, it is usual to()the appointment in writing.

A.a(chǎn)ppoint,make
B.want,make
C.need,make
D.need,do

2.單項選擇題For()commodities as oil, sand and timber, rail is cheaper than road.

A.unpacked
B.unpackaged
C.bulk
D.bundled

3.單項選擇題After inspection of the above shipment we found 5 cases().

A.losing
B.missing
C.lost
D.missed

4.單項選擇題Please let us know what()are involved and the time()for delivery.

A.formalities,taken
B.procedures,need
C.business,taken
D.process,needed