The stronger the ______ is, the more quickly a person will learn a foreign language. That is to say, it is up to whether he has an interest in the foreign language.
________left before the deadline, it doesn't seem likely that John will finish the job.
Books are the important records we keep____ man's thoughts, ideas and feelings.
Take a taxi , _____ you'll miss your train .
Sometimes it was a bit boring to work there because there wasn't always ______ much to do.
When is the best time to ____ my employer about an increase in salary?