看图写话 (每小题1.5分，计6分)   

1. while                   2. go to school

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3. let ,  know about her sadness          4. should not

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直线杆卡盘的埋设应与线路平等并应在线路电杆（）埋没。

A.面向电源侧左边

B.面向电源侧右边

C.左右交替