在开展业务时，()是了解客户、收集信息的最好时机。
Wehavetowaitforthebus,______?
Australiaislocatedbetween________andtheIndianOcean.
Whenyou're_____acrisis,itoftenhelpstotalktosomeone.
Ittookmeamonthtogetrid_______thecough.
Iunderstoodfromherthatyouundertookotherimportantwork______.
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