He's crossing the road when there is a red man.
He should stop and wait for the green man.
句意:
A:刘涛在做什么?
B: _______
A: 他应该做什么?
B: ________
根据图片可知,刘涛正在红灯的时候过马路。故第一空答案为:He's crossing the road when there is a red man.
红灯我们需要停下来等待,不然来往车辆会导致交通事故。故他需要灯绿灯了再通行。所以答案为:He should stop and wait for the green man.