单项选择题
I think this sofa is（）than that one.
A.costlier B.expensiver C.cost more D.more costly
单项选择题 He wants to（）of the fine weather today to play tennis.
单项选择题 There are many cities（）very fast.
单项选择题 Civil war or regional conflicts also cause disruption,（）people out of rural areas.
