Although we met with many difficulties, we got back home ________.
To understand the grammar of the sentence, you must break it __________ into parts.
I feel __________ necessary for her to learn foreign languages because the job she will do is __________ to foreign business.
They are good friends and share __________ with each other.
Do you remember there __________ a river here?
She died __________ old age while her son died young.