remove by erasing  or  crossing out  or  as if by drawing a line.

两个 or 连接3个并列成分。as if 从句中省略成分，是很常见的。又如：

在 as if 方式状语从句中，省略“主语 + be”：

She talked to the stranger as if (she were) absent-minded. 她和陌生人谈话时似乎心不在焉。

He opened the drawer，as if (he was) in search of something important. 他打开抽屉仿佛要找什么重要的东西。

She stood at the gate as if (she was) waiting for someone. 她站在门口好像在等人。

The teacher shouted at the boy as if (he was) angry. 老师朝孩子大喊大叫好似很生气。