文法：adv. clause (副詞子句) 文法：adv. clause (副詞子句) Name(姓名): 1. Customers who hear music on an open telephone line _______ placed on hold are less likely to hang up. A) as B) while C) to D) nearby 2. Staff members have reported hundreds of phone calls _______ the promotion was aired on television and radio a few hours ago. A) by B) before C) since D) past 3. _______ the marketing head transfers to Singapore, there will be an open position at the main office. A) So B) Wherever C) If D) Whom 4. Please refer to the enclosed manual or call one of our technicians _______ you are unable to fine-tune your device. A) unless B) while C) if D) whether 5. _______ that exports have failed to recover the economy, the government is appealing to corporate entities for help. A) Even so B) Considering C) In case D) Unless 6. The company will redesign a vacuum cleaner it put out in the market two months ago _______ the many complaints it has received. A) were given B) given C) have given D) gave 7. _______ much your company is paying you, I can guarantee twice that salary if you work for us. A) Whatever B) However C) Whichever D) Whenever Submit
