I like watching a film before I go shopping.( 改为同义句)I like watching a film before ( )shopping.

问题描述:

I like watching a film before I go shopping.( 改为同义句)
I like watching a film before ( )shopping.

正解答案是I do ,go shopping=do shopping

do

I like watching a film before ( doing )shopping

going

填going
before,while,after,when……后如加人称动词为原形,不加人称直接跟动词则动词为ing形式

go或do