unit 1 application unit 2 visa application unit 3 at the airport unit 4 housing unit 5 shopping unit 6 t office unit 7 banking unit 8 on the trip unit 9 telephone unit 10 weekend unit 11 meeting professors unit 12 class activity unit 13 go to hospital unit 14 bargain shopper unit 15 makea n unit 16 working
以下为对购买帮助不大的评价