Splitting dinner checks can cause a splitting headache, even when the diners are mathematics majors. Three computer science (36) ______ students at the US's Carnegie Mellon University were (37) ______ up with worrying about shared bills so they decided to act. Shashank, Amit and Ashwin created a free website, Buxfer.com, in September, to help people remember who (38) ______ what and to whom.
Instead of trying to (39) ______ out how every dinner bill should be split, the site allows users to form groups of friends or housemates to (40) ______ shared expenses over longer periods of time. For example, if one housemate pays for dinner for everyone, he earns (41) ______ in his Buxfer group and pays less on next month's rent. Buxfer quickly became (42) ______ among college students and young (43) ______ who often pool expenses and borrow small amounts from each other.
News of the site has spread largely by word of mouth and on blogs. (44) _____________________________________________________ . Buxfer automatically e-mails users about new transactions. When a user logs on to Buxfer, (45) _______________________________________________________ . Users can also leave notes for each other on the site.
Buxfer has been an eye-opener for Veda as it has shown him how much money was flowing between him and his friends. The site is helping him track US$300 that others owe him, (46) _____________________________________________________________ .
解析：空格前的were表明此处需要动词、形容词或分词，且能与up with搭配。be fed up with意为“受够了”。
解析：空格前的trying to表明此处需要填入动词。figure out意为“弄明白”。
44. 标准答案：It now has about 3,000 users who have made transactions of more than US$875,000
听音关键：3,000 users, transactions, $875,000
答案重构：Now about 3,000 users make transactions of over US$875,000.
45. 标准答案：the amount he/she owes or is owed is shown on the homepage
听音关键：amount, owe, is shown, homepage
画龙点睛：此处不建议重构，注意he/she owes or is owed是修饰amount的定语从句。听音时需先抓住主干：the amount is shown on the homepage.
46. 标准答案：as well as the US$1,500 he owes to a friend who bought an airline ticket to India for him
听音关键：$1,500, owes, friend, airline ticket, India
答案重构：and the US$1,500 he owes to a friend for buying an airline ticket to India for him
画龙点睛：as well as 表示“除……外，也……”。