单项选择题
Look at that little boy wandering about—perhaps he ______ his mother.
单项选择题 Tom got very angry when the other boys played a ______ on him.
单项选择题 —Who told you about "Follow Me"—______. I picked it up ______.
单项选择题 To our surprise, the stranger ______ to be an old friend of my mother"s.
