问题
选择题
People traveling long distances frequently have to decide ______they would prefer to go by land, sea or air.
A．which
B．how
C．why
D．whether
答案
答案：D
主要测试宾语从句。分析句子结构可知动词decide需要宾语，另外句子______they would prefer to go by land, sea or air中含有or，应该属于选择性句子，结合答案可知用whether。译文：那些经常去远地方旅游的人宁愿选择乘公共汽车、轮船还是飞机呢。