While the lien was in the museum,I called the TV station,不是when引导的句子.call要用ing形式吗?
问题描述：
While the lien was in the museum,I called the TV station,不是when引导的句子.call要用ing形式吗?
答
这里call 用called 是过去时态.用when时,仍然用called.这是时态决定的.
calling有时句子结构或省略需要,且表主动.