学进去

These days Mike is _______ something _______ the signs. He wants _______ everything about the signs. _______ Sunday he goes to the park _______ his friends. They see many public signs in the park. Mike _______ know what they _______. Ben tells him what they mean. Now Mike knows _______ about public signs. After he _______ home, he tells his mother. His mother is very happy. She tells Mike __________ more from his teachers and his friends.