解答56.答案:D细节理解题.从文中Then we waited half an hour for the school bus,but it didn't arrive.Finally,our teacher took us to take the subway描述中,可得知我们等了半小时的校车,但没有来.最后老师带我们坐地铁,故选D. 57.答案:B.细节理解题.从文中When we finally arrived at the zoo,...
【题目】In our life, there are many messages that tell us to be healthy. We may make much effort to achieve this goal. But really, it doesn't have to be so hard. Simply going for a walk—especially if you do it regularly and outdoors—is a lowstress, lowimpact(低强度), and an ...