怎样加ing形式?快英语考试了,
1个回答

1 介词后,look forward to , for

2 现在进行时,be doing

3 一些固定的动词后要ing形式, enjoy like hate

4 还有就是分词作状语,而且和发出动作的人是主动关系

Not knowing her address,I could not write