---I am going to Japan.
--- How long_____ you_____ there ?

---- Do you know our town at all?
----No, this ________ the first time I _________ here.

— The window must have taken you quite a lot of time that day.
— Right. They____ for weeks.

—Have you got any trouble finding your way in Shanghai?
— Yes，I tried to fid the way to the airport but ______.

I have called the station and they told me the next train for Chongqing _____at 2:30.

–What is the theme about for the meeting this evening?.
--No idea. Perhaps we will have to discuss the plan ___ a few days later.

With all the food supply ___, the researchers had to put an end to the wildlife protection project and returned home.

I was not hearing to the teacher, or else I ___ his questions.
A. answered   B. had answered    C. would have answered   C. have answered

The young man insisted that he _________ nothing wrong and __________ free.

With the help of high technology, in the past few years, electronic business __________          to bank industry, travel industry.