题目

新时期，我国外交政策的具体表现是                                      A．不结盟政策       B．一大片政策      C．全面结盟      D．闭关政策 答案：A 解析: 略—Where`s Mary now? Do you know? —No, but I heard _____ in her room a few minutes ago. [     ]A. her singing B. her sing C. she was singing D. all the answers are right