Ⅰ.单句语法填空
1.Cindy shut the door heavily and burst into tears.No one in the office knew she was so angry.
答案why
2.You’ve failed to do what you (expect) to and I’m afraid the teacher will blame you.
答案were expected
3.It took me a long time before I was able to fully appreciate what they (do) for me.
答案had done