题目

The summer before I went off to college, Mom stood me in her usual _______ behind the ironing board (烫衣板)and said, “Pay attention: I’m going to teach you to _______.”Mom clearly explained her_______for this lesson. I was going to be_______and needed to learn this vital skill. Also, I would be meeting new people, and properly ironed clothes would help me make a good_______“Learn to iron a shirt,” Mom said, “and you can iron anything.”But ironing shirts was not_______work. It didn’t make use of long muscles we used to throw a baseball, and it wasn’t a _______ operation li 从所给的四个选项中选择最佳答案 I ________ to be out when he dropped in.　　　[　　] A．happened　　　B．happen　　　C．took place　　　D．came upon