1/We often shank hands when _____(introduce) to each other 2/afte_英语解答

1/We often shank hands when _____(introduce) to each other 2/after
1、after _______（swim） in the swimming pool
2、/We often shank hands when _____(introduce) to each other 2/after

人气：439 ℃　时间：2020-03-11 14:30:24

解答

1.swimming (介词后+doing)
2.introduced(= when we are introduced）
确保正确,可第2题的when不也是介词么为什么不用introducing。when可作介词或连词，但本句根据语境，应表示“被介绍时”。本题考查的是过去分词词组作时间状语，表被动，相当于一个状语从句