Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.
After endless, （ ）phone calls, I had to cancel out my credit card to ensure that no further charges were made. (consume, time)
【正确答案】：TIME-CONSUMING
【题目解析】：
根据前文 endless（无尽的）和后文phone calls（电话）可知空格处应填形容词修饰电话。consume, time可合成形容词time-consuming费时的。
句意：打了无数次费时的电话后，我不得不注销信用卡，以确保不再收费。