Giải thích: discourteous (adj): bất lịch sự
impolite (adj): bất lịch sự polite (adj): lịch sự
unacceptable (adj): không thể chấp nhận được rude (adj): thô lỗ
=> polite >< discourteous
Tạm dịch: Thật là bất lịch sự khi hỏi của người Mỹ những câu hỏi về tuổi, hôn nhân hoặc thu nhập của họ.
Đáp án: B
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More people are now employed in service industries than in manufacturing.
The government is being widely criticized in the media for falling to limit air pollution.
The council has spent an enormous amount of money on this project.
We have to employ extra staff to deal with the increased workload.
If we use robots instead of humans, many people may be out of work.
After the marriage, Ruth decided to settle permanently in New York.
The palace was badly damaged by fire, but was eventually restored to its original splendor.
He found the course difficult so he had to spend most of his time on study.
Despite having a bigger and cheaper choice of healthy foods, many Americans have lost a lot of weight.
That is a well-behaved boy whose behaviour has nothing to complain about.