单项选择题
A.expanding B.exploring C.exploding
Weusuallykeepalargesupply（）stock.A.atB.onC.in
单项选择题We usually keep a large supply （）stock.
A.at B.on C.in
Inordertomakeproperreservations，willyousendyouracceptan...
单项选择题In order to make proper reservations， will you send your acceptance to the attention ofProfessor Chen（） a week before that day？
A.no later then B.no late than C.no later than
Iplantousethemediamixto（）reachour.A.target marketB.free...
单项选择题I plan to use the media mix to （）reach our .
A.target market B.free market C.stock market
