单选题 Mr Ranson called while you were on the phone-he"ll try again this afternoon.
Mr Ranson ______.
【正确答案】 A
【答案解析】题目中的he"ll try again和A项中的promised to call back都表示了要再打电话的意思。B项的意思是留了口信,C项的意思是(由接线员)接通了电话,B、C均与原句意思不符。