F. When there is a long adverbial in the dependent clause, suffix –le should be used in the main clause

 

gēn Xiǎo zài Shànghǎi lǚxíng de shíhou yǐjīng gěi -le diànhuà.  

我跟小李在上海旅行的时候已经给他打了电话。

I already called him when Young Li and I were traveling in Shanghai.