单选题
Sometimes very young children have trouble ______ fact from fiction and may believe that such things actually exist.
A、
separating
B、
having separated
C、
to separate
D、
for separating
【正确答案】
A
【答案解析】
“have trouble (difficulty，a problem) in doing sth．”结构中，in经常可以省略，意思是“做某事有麻烦(困难，问题)”。
提交答案
关闭