（2015·湖北） Don't worry. I'm sure your missing glasses will ______ sooner or later.

在直角坐标系 $xoy$ 中，已知点 $A(0,-1),B(2,0)$ ，过 $A$ 的直线交 $x$ 轴于点 $C(a,0)$ ，若直线 $AC$ 的倾斜角是直线 $AB$ 倾斜角的2倍，则 $a=$ （   ）

短文改错。便条中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧）。并在其下面写出修改后的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词后划一横线,并在该词下面写出修改后的词。
注意：1）．每处错误及修改均仅限一词;
2）．只允许修改10处,多者（从第11处起）不记分。
    One day, I was cooking in the kitchen when the telephone rings. I went to answer it immediately. She was my close friend, Lisa. When we were talking on a phone, the fire alarm sounded. I dashed back to the kitchen. The room full of smoke and the beef was bad burnt. I quickly turned off the gas, opening all the windows, and then rushed out of the house. In my surprise, two fire engines were outside my house. I was rather worrying. I told about the firemen that it was my careless cooking which caused the heavy smoke.

中东输出的石油，大部分由波斯湾沿岸港口用油轮运出。图中B石油输出路线是