问题
选择题
The children _____lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.
A．must have got
B．must get
C．should have got
D．should get
答案
答案：A
情态动词和have done 结构连用表示对过去的情况猜测，根据下文的意思“要不然孩子们按照安排就已经到了湖边”说明他们一定是迷路了，must have done 表示对过去肯定的猜测。句意：那些男孩一定是在树林迷路了，否则的话，按计划他们本应该在湖边安营扎寨的。
【考点定位】考查情态动词的推测用法