Most American familes like to have a vacation ____ summer.Summer is a good season____ vacations.It is very hot during the moths of
问题描述：
Most American familes like to have a vacation ____ summer.Summer is a good season____ vacations.It is very hot during the moths of
答
Most American familes like to have a vacation _in_ summer. Summer is a good season_for_ vacations. It is very hot during the moths of
in sumer, 在夏天
for vacation 对于假期来说