We've had a good start, but next, more work needs ________ to achieve the final success in English study.
Recently I bought an ancient Chinese vase, _____ was very reasonable.
_____ has already been pointed out, grammar is not a set of dead rules.
He lived in London for 3 months, during ____ time he learned some English.
Helen was much kinder to her youngest son than to the others , ____ , of course , made the others envy him .
A story goes ______ Elizabeth I of England liked nothing more that being surrounded by clever and qualified noblemen at court.