According to the latest investigation,most mistakes be prevented if students are careful enough.
The women carrying babies , come in first ,_________ ?
In no country other than Britain, it has been said, ____ experience four seasons in the course of a single day.
They have no idea at all ____.
________ on the top of the mountain is an ancient tower dating back to hundreds of years ago .
No sooner _____ themselves in their seats in the theatre _______ the curtain went up.