四六级考试

【单选题】 You ______ all these parcels yourself. The shop would have delivered them if you had asked them.
A．didn't need to carry
B．didn't have to carry
C．could not carry
D．needn't have carried

网考网参考答案：D
网考网解析：
needn't have carded本来没有必要携带(但是还是带了)。该题是情态动词加上完成时态的虚拟语气。 查看试题解析出处>>