单项选择题
M: Hi, Miss White. Is Mr. Black in the office W: Oh, no. You just missed him. He left only a few minutes ago.
Where is Mr.．B1ack().
A．He is in the Office. B．He is out. C．He is at the theatre.
单项选择题 () people take holidays in summer.
单项选择题 Barbara () in doing it again though she had failed more than a dozen times.
单项选择题 The driving instructor told me to pull () at the post office.
