問題補充：
單選題
Every hour and every minute ______precious to us because only six months are left for us to prepare for the college entrance examinationsA.will beB.areC.isD.were
網友答案：
熱心網友 1樓
C解析考查主謂一致。every+ 單數可數名詞 and every+ 單數可數名詞做主語時，謂語動詞用單數形式，根據語境所以選C。
