.He said he _________ experiments those days.
If you are in a country ______they don’t speak your language,you can show the address to the taxi driver.
_________money has been invested to promote the traffic conditions of this city.
The teacher kept his _______ and took his students to the cinema,where they had _______.
It is a common ____ to have a cake with candles to celebrate a holiday ,birthday or any other occasion.
--Has Mr. White arrived, Tom?--Yes, sir. _____ he come in to see you right now?