【单选题】Neutron Inc. is conducting a business analysis to determine which of the many newly developed apps should be released. To estimate sales, the company must ________.
【简答题】在下列横线上填入适当的话语,使对话完整正确。 Jane: Hi , Sam ! Have you just come back from Australia ? Sam : 小题1:___________________________________ . Jane : Who did you go there with ? Sam : I went there with my uncle . ...