Most properties now have computerized reservation systems that _

Most properties now have computerized reservation systems that ___26___ the balance between rooms ___27___ and reservation requests. The morning clerk and his or her supervisor, the guest services manager (or front office manager), monitor this process and ___28___ any special reservation requests. In a property. ___29___ does not have a computerized reservation system, they will block the day's reservation.
The computer program or programs that ___30___ the PMS (Property Management System) prompt the clerk to follow an appropriate work ___31___ for every task. For instance, when a guest checks into the hotel, the clerk indicates ___32___ the guest has a reservation or not. If the guest has a reservation, the clerk need only type in the name and the computer will ___33___ the reservation and ___34___ print out the necessary records. In most cases, the guest is simply aske to ___35___ his or her name. If the guest doesn't have a reservation, the clerk gets the necessary information, ___36___ the format on the front-desk computer screen. When the guest checks out, the computer once again presents a screen with ___37___ that will help the clerk to __38____ the appropriate sequence, verifying the ___39___ with the guest, posting any late charges and accepting ___40___ by credit card or cash or billing the account directly if prior arrangements have been made.
回答第26空
A、trace back to
B、check out
C、keep track of
D、take charge of
【正确答案】：C
【题目解析】：本题考查动词短语辨析。 本句是指电脑预订系统可以记录可用房间和预订要求之间的平衡。trace back to追溯到; check out 检验; keep track of 记录,与......保持联系;take charge of接管,负责。故选C。