Our manager has gone to Paris, so I have to deal with all the letters during his ________.

If you ever have the _____ to go abroad to work, you should take it.

There’s no      from my bedroom window except for some factory chimneys.

Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____  without scientific basis.

You have missed your______.You have to queue up there and wait for the next round.