—What color is that hat?

—                           .

—Are you a student?

—                               .

“When will we get to Beijing?”

“________ 12∶00 a.m．”

-Oh, dear!Surprised to meet you here．________ since we last met．

-I has．Long time no see．

--- How do you usually come to school?

--- ________.

--- I think it would be a good idea to listen to English programmes over the radio.

--- ________.

--- Must I hand in my exercise book now, Mr Zhao?

--- No, you ________. You may give it to me tomorrow.