单项选择题
I think this sofa is（）than that one.
A.expensiver B.more costly C.cost more D.cos tlier
单项选择题 Someone over 18 years old is（）under British law.
单项选择题 They are（）children because they do not have enough to eat.
单项选择题 The company plans to shut（）four factories and cut 1,000 jobs.
