按给出的要求变换下列句子，要求每空限填一词。

1. She has a nice watch. (改为复数形式)

    ________ have some ________.

2. Nat went to a movie yesterday. (对划线部分提问)

    ________ did Nat ________ yesterday?

3. Jack did his homework last night. (变为否定句)

    Jack ________ ________ his homework last night.

4. Jim has breakfast at six in the morning. (改为现在进行时)

    Jim ________ ________ breakfast now.

5. They often go to the beautiful beach. (用last year改为一般过去时)

    They ________ ________ to the beautiful beach last year.

从增长模式看，目前我国增长模式还比较粗放，经济增长主要依靠设备投资和出口牵引。日本则早在上世纪70年代初就已完成工业化目标，跨人了成熟阶段的门槛，早已结束“大量生产和大量消耗”的粗放模式。这表明[ ]

①我国只在科技方面处于社会主义初级阶段

②我国仍然处于社会主义初级阶段

③我国仍然面临发达国家在经济科技方面占优势的压力

④我国的经济科技发展速度远远落后于发达国家

A．①②

B．①④

C．②③

D．③④