－What do you think of store shopping in the future?
－Personally, I think it will exist along with home shopping but ______.

The students        busily when Miss Brown went to get the book she      in the office.

My family plans to move into the building that is      over there now.

––Oh, it’s you! I          you.
––I’ve just had may hair cut and I’m wearing new glasses.

---Where is the manager? I have something important to discuss with him.
--- He is at the airport now. He _________ for Beijing.

They __________ with each other for two years before they got married.

--- What would you do if it ______tomorrow?
--- We have to carry it on, since we’ve got everything ready.

--- Does your sister work in the company?
--- No, not now. But she ______ there for 8 years.

Before the first nonstop flight made in 1949, it_____ necessary for all planes to land for refueling.

----Have they finished the project?
---- Yes. By the end of last month, they ______ it. Now they ______ on a new one.