问题
选择题
Our government is trying to search for the airplane has been missing for many days.
A．what
B．that
C．who
D．why
答案
答案：B
题目分析：句意：我国政府正在努力寻找这架消失了多日的飞机。结合语境可知本句中先行词the airplane为下文定语从句的逻辑主语，指物，故引导词用that，选B。
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