Sometimes we can see more than 60 students are in a small school bus which can easily ca

问题补充：

Sometimes we can see more than 60 students are in a small school bus, which can easily cause traffic accidents.

A. packed

B. combined

C. directed

D. involved

答案：

(答案→)A. packed

B. combined

C. directed

D. involved

解析：考查动词辨析。Pack挤压，塞满 combine结合 direct 指导，指挥 involve涉及

句意为有时候我们可以看到60多个学生被塞到一个小校车里，这很容易导致交通事故。