问题
选择题
The enemy suddenly appeared.
A．went in
B．left
C．showed out
D．came in sight
答案
答案：D
题目分析：句意：敌人突然出现了。appear出现，go in 进入，left离开，came in sight看见，出现，故选D
点评：appear意为出现，为不及物动词，该词并没有被动的形式。disappear为消失，为其反义词，show out表示送某人出去，相当于see sb out.