题目内容
（请给出正确答案）
[主观题]
To live with a family whose native language is English is the ideal way to further imp
rove one's English and to gain ________ into its culture.
A、happiness
B、insight
C、sightseeing
D、insignificance
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The businessman regretted having spent so much time traveling when he()with his family.
A、should have stayed
B、had stayed
C、was to stay
D、must stay
