问题：
— Mum, will you buy me the new iPad after the Entrance Examination?
— I’m afraid I ________, dear. We are short of money now.
A．mustn’t
B．can’t
C．shouldn’t
D．needn’t
— Mum, will you buy me the new iPad after the Entrance Examination?
— I’m afraid I ________, dear. We are short of money now.
— I’m afraid I ________, dear. We are short of money now.
| A．mustn’t | B．can’t |
| C．shouldn’t | D．needn’t |
参考答案：