.it -------snows in Shanghai in winterA sometimes B usuallyit is raining outside .-------- -------- your raincoat.A putting on B put on i will tell him as soon as he -------A returns back B returns
问题描述：
.it -------snows in Shanghai in winter
A sometimes B usually
it is raining outside .-------- -------- your raincoat.
A putting on B put on
i will tell him as soon as he -------
A returns back B returns
答
1 sometimes 虽然B 也说得通 可是上海的冬天只是偶尔下雪 还是sometimes跟符合实际一些
2 put on 祈使句
3 returns A的话 本身就是错的 return本身就是回来的意思 再加上back就重复了