There is somebody knocking at the door. Who________it be—I’m not sure. It ________ be a postman.

My parents always ________ great importance ______ receiving good education.

We can’t pass the exam, ______ we study hard

Did the policeman let you in?-No, ________ I told him who I was.[ ]

, what would you like to eat for lunch,pizza, pasta or sushi —_______ I have a good appetite