Find which word does not belong to each group.
A. album
B. stamps
C. mountain
D. collector
Đáp án: B
Giải thích: Đáp án A, C, D đều là danh từ đếm được số ít.
Choose the best answer.
Non-smokers usually live …………. than smokers.
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It is strange but often a coke is ……………..than a beer.
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Is the North Sea ……….. than the Mediterranean Sea?
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Do you have a ………….. job than your sister?