单项选择题A．Three quarters of an hour. B． Half an hour.C． A quarter of an hour.

单项选择题A．Invite everyone. B．Have two parties. C． Take a few classes.

单项选择题A．He doesn’t know if there is a photocopy machine there.B．The woman can make copies at the post office.C．The photocopy machine isn’t in the office any more.

单项选择题A． All of them landed safely. B．Some were wounded, but there were no deaths.C．Some were kidnapped.

单项选择题A．Tired. B．Lonely. C． Sad.