In taking a space walk, Chinese astronauts are__________ going where Russian andAmericans went decades before.
I like the colour of the cap ______ I dislike its design.
It is believed that _____ European scientist invented _______.
The shop has been standing so ______ that a thief finds nothing to steal.
You can’t be too careful; this kind of cloth_____.
---I think you should telephone Jenny and say sorry to her. ----______________. It’s her fault.