The computer was used in teaching . As a result, not only __________ , but students became more interested in the lessons.
We shall never forget the days ________ we spent playing happily together.
______ is said, the Yeti is a large, hairy animal that walks on two feet like a human being.
It is thought that Zheng He, a Chinese in the Ming Dynasty, may have been the first person who _____________America from the East.A set out to B. set about toC. set sail to D. set sail for
I don’t care ____ or not you like the plan.
The old couple looked at the plane with their son on it until it was ______.