题目

It was now time to interview the farmer, for whom I had （先前，以前） worked. 答案：【1】previously某村计划植树70棵，实际比计划少植，实际植树多少棵？正确的列式是 [     ]A．70×（1-）B．70×（1+）C．70÷（1-）D．70÷（1+）