—Can you come to my party this Saturday, Lucy?— ______.I’m not in Jinan that day.
Many Chinese students found______ difficult to learn English grammar.
---Where are you going, Jack? --- My hair is too long. I’ll have it _______.
---Who is the tallest boy? ---It ______ be John.. John is of medium height.
---Is your father a teacher? ---Well, he ______. But now he works in a bank.
---_____do you tell him the news? ---By _____an e-mail.