. The millions of calculations involved, had they been done by hand, _____ all practical value by the time they were finished.

— Oh, Mary! I ________ you.
— No surprising. ________you met me, I was only a little girl.  

Behind the teaching buildings ______ a big lake surrounded by trees and flowers.

What a mess I have made! How I wish I ______ to paint the walls of the house.

I don’t work here full-time. I ________ temporarily.

--- Bob! How is your project? I heard you started it last Friday, right?
--- Oh! I ______ for it. But I haven’t decided when to do it.

.A 78-year-old retired engineer has built a capsule hotel for Beijing’s “ant tribe”. Among the 6 volunteers to try out the apartments on April 3____ Sun Changyun, a college student from Shenyang.

I’d like to think decades from now, a young Chinese person ______ inspired by Expo 2010 to one day visit where I grew up, just as I’ve finally gotten to experience China in person.

It is reported that the number of graduate students who___ mental problems ___on the rise.

--- Don’t waste any paper, because our forests ____ every day.
----Sorry, I didn’t know that.