Now mobil phones are very popular and they are much               than before.
A. cheap         B. cheaper         C. the cheapest
B

試題分析：句意：現(xiàn)在手機(jī)是受歡迎的，他們比以前便宜多了。兩者比較用比較級，比較級前不加冠詞，故選B。
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