He is afraid to face the difficulty he thinks he’ll have _________ the driving test tomorrow; he finds it difficult _________ rid of the worries.
Have you made up your mind ________ abroad? I advise you to consider it carefully.
________ get a complete picture, more information is needed.
The USA is a large country in ________ many different dialects are spoken.
Look at this! It’s broken now! You ________ have been careful!
It was my sister ________ first had the idea to cycle along the entire Mekong River.