单选题 21.She never regretted paying $ 200 for the bookcase. As a matter of fact she would gladly have paid______for it.
【正确答案】 D
【答案解析】twice as much“两倍”。还可以说as much again,意思不变。注意:谈论不可数的东西时需说twice as much(as),谈论可数的东西时需说twice as many(as)。