用所给词的适当形式填空。

1.—What ________ you ________now?

  —I ________ (make) a cake for my birthday.

2.  Paul can't ________(go) to the party.

3.  How________you________ (spend)  your last weekend?

4.  The day after tomorrow I ________to the mountains.

5.  —Can she go to the baseball game this morning?

    —No, she can't. She ________ (have) a computer lesson.

6.  Please________ (not talk) to Jim.  He is doing his homework.

（二） 某农户种植水稻10亩，2011年共收获稻谷5100千克，主产品产值为6700元，副产品产值为550元，主副产品产值合计为7250元；该农户投入的种子、肥料、农膜、畜力、排灌、机耕作业费等物质费用共计2350元，用工为225个工，用工作价为2950元；生产稻谷共花费2.5个常年劳动力。

下列指标中，属于农业劳动生产率指标的有______。

A．人工日

B．人工时

C．人年

D．千克/亩