8.We look forward _____ your orders.
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9.Our quotation ____30 tons of Shandong groundnuts is valid for 10 days.
A.to
B.after
C.if
D.for
10.We can supply this type of machine ____ very favorable terms.
A.for
B.to
C.against
D.on
11.The containers will leave our plant ____ rail.
A.by
B.in
C.for
D.on
12.Direct steamers to your port are few _____ the winter season.
A.but
B.yet
C.with
D.during