It was not _____ she took off her dark glasses _____ I realized she was a famous film star.
---I am afraid that I have to trouble you with this question. ---___________.
--How long are you staying ? -- I don’t know . ______.
The Olympic Games are held _____.
This area experienced ____ heaviest rainfall in ____ month of May.
We offered these students a summer course ,aimed _____ improving their spoken English.