He is a foreigner and he is not accustomed __________ like that while he is in China.
If you ever have the _____ to go abroad to work, you should take it.
Carl wanted to play a joke on Bob but gave himself _____ by laughing.
As he had no friends and relatives in the town, the traveler tried to find a _____ somewhere.
The thieves _____ him _____ in the park, took his wallet and escaped.
When the Greeks had _____ the Persians, a soldier ran from Marathon to Athens.