从方框中选择适当的单词填空。
That boy takes after Mr. Brown. He _____ be his son.
-Where is Jim?-Sorry, but he_____ be at school. I saw him in the street just now.
I don’t know the way to the post office. What ______ I do?
_______ you like to come for dinner?
-_____ I do my homework now? -No, you don’t have to.