Someonecalledmeupinthemiddleofthenight，buttheyhungup
问题详情：
Someone called me up in the middle of the night，but they hung up ________ I could answer the phone. A. as B. since C. until D. before
【回答】
D
知识点：连词
题型：选择题
问题详情：
Someone called me up in the middle of the night，but they hung up ________ I could answer the phone. A. as B. since C. until D. before
【回答】
D
知识点：连词
题型：选择题
