---You are late again. The class ________ for five minutes.
---Sorry. There is something wrong with my bike.
A. beganB. has begunC. was onD. has been on
_______ the mouse, you can choose an icon _______ for more details.
A. By; to click on B. With; to click on
C. With; to click D. By; to click it
----Look at the boy running on the playground. Is it David?
---- It ______ be him. I saw him go to the teachers’ office just now.
A. mustn’t B. can’tC. may not D. needn’t
---With 4G mobile phones, people can even see each other as they talk.
----Really? Would you show me it, please?
A. how to useB. when to useC. where to useD. what to use
--______ to Hong Kong?
-- Yes, and I will be back next month.
A. Have you gone B. Have you been C. Are you going D. Did you go
They were _______ busy ______ the project ______ the time.
A. too; to discuss; to forget B. too; discussing; to forget
C. so; to discuss; that they forgot D. so; discussing; that they forgot
