Every time he finishes ____his story,he____e-mails to his teacher and talks about his story.(write)
问题描述：
Every time he finishes ____his story,he____e-mails to his teacher and talks about his story.(write)
填介词
How ____having a picnic at weekends.
The wild geese miss their home___the north and fly back in spring.
The water in the river runs down___west_____east.
答
writing wrote