some people _________________(boat)in the lake
问题描述:
some people _________________(boat)in the lake
答
are boating 一些人正在在湖里划船(现在进行时)
boat 一些人在湖里划船(一般现在时)
答
have some boating/are boating
答
are boating
一些人正在湖上划船.