句型转换

1. They did some shopping yesterday.(变为否定句)

    They _____ _____ _____ shopping yesterday.

2. He decided to be a teacher when he was a child.(对画线部分提问）

    _____ _____ he _____ _____ _____ when he  was a child?

3. We didn't watch TV because we didn't have a TV.(对画线部分提问)

    ________________________________________?

4. He finished reading the book yesterday.(对画线部分提问)

    _____ _____ he _____ _____ yesterday?

5. They opened a museum about his life.(变为一般疑问句)

    _____ they _____ a museum about his life?

如右图P1、P2为半透膜制成的结构，且在如图的小室内可自由滑动。A室内溶液浓度为2mol/L，B室内溶液浓度为1.5mol/L，C室内溶液浓度为1.5mol/L，实验开始后，P1、P2分别如何移动（）

A.P1向右、P2向右

B.P1向左、P2向左

C.P1向左、P2不动

D.P1向右、P2不动