78.Weregrethavingtodeclineyourproposal,____thislineofbusinesshasalreadybeentakenupbyanothercompanyinyourareaonanexclusivebasisfortenyearscommencinglastyear.
A. for
B. butfor
C. however
D. becauseof
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79.Incompensationtrade,wepayforthecostoftechnologicalimportsbydeliveryofendproducts____inprocessingorassemblydeals,wechargeafeeforprocessingrawmaterialsorassemblyofparts.
A. if
B. whether
C. while
D. when
80.____”virtualshops”maylacksee-and-feelsampling,thephenomenalgrowthofcatalogueshopping,TV-and-phonemarketingandphone-bankinginrecentyearsisproofthatsee-and-feelisnottheonlywaytosell.
A. While
B. Ifthat
C. When
D. Which
81.Weassureyou____thegoodscanbesuppliedfromstock____youorderearly.
A. that,if
B. whether,if
C. that,whether
D. if,that
82.____ourrepresentativecallsonyounextweek,hewillmakeyouanoffer____wefeelsurewillmeetwithyourapproval.
A. When,which
B. Who,which
C. When,withthat
D. Whom,withit