句型转换。

1. We went to the mountains on Saturday morning. (改为一般疑问句)

     ________ you ________ to the mountains on Saturday morning?

2. Annie studied for the math test last night. (对画线部分提问)

    ________ ________ Annie ________ last night?

3. I had a busy weekend. (对画线部分提问)

    ________ ________ your weekend?

4. Frank played computer games just now (刚才). (改为否定句)

    Frank ________ ________ computer games just now.

5. What did you do over the weekend? (改为同义句)

      ________ did you ________ your weekend?

已知起航点经度λ1＝006°12＇.7W，到达点经度λ2＝107°24＇.9E，则两地间的经差Dλ为（）。

A．113°37＇.6W

B．113°37＇.6E

C．101°12＇.2E

D．101°12＇.2W