单选题：She hurriedly left the room as if__________.[ ]A. she angr..

___________in the regulations that one should not tell other people the password of your email account.[ ]A. What is recommended B. What recommend C. It is recommendedD. It recommend

_____will be good for you to spend one hour exercising outdoors every day.[ ]A. ThatB. This C. It D. One

From mum's love, patience and understanding, I have learned what a huge responsibility _____ is to raise a child. [ ]A. itB. that C. this D. one

—You should have thanked her before you left.— I meant ____, but when I was leaving I couldn't find her anywhere. [ ]A. to doB. doingC. to D. doing it

You shouldn't take _____ for granted that your parents care much about you and do so much for you.[ ]A. itB. that C. this D. one