They thought __________ important to look right and left when ________ the road.
— Ann has made great progress recently.— ______ and _______.
In this world there is no shortcut to take. So people, no matter how clever they are, can’t succeed_______ they work hard.
—I am sorry I _________ my homework at home.—That’s all right. Don’t forget _______ it to school this afternoon.
—Can you come and give us a talk on Thursday or Friday?—I am afraid ______ day is possible. I am very busy these days.
—Do you know the teacher ____ classes are interesting and exciting?— Yes, she is Mrs. Zhang.