精选优质文档-倾情为你奉上Unit1 Friendship There are 10 incomplete sentences in this part. For each sentence there are four alternative choices marked A), B), C) and D). Choose the one that best completes the sentence. 1. True friendship must be based on _b_ the joys as well as troubles. A) participatingB) sharingC) owing D) possessing 2. He was taken on for a three-month trial period before being accepted as a(an) _d_ member of staff. A) lastingB) eternal C) persiste
