They could not get tothe top of the mountain because of the heavy rain.（改同义句）
问题描述：
They could not get tothe top of the mountain because of the heavy rain.（改同义句）
=The heavy rain _____them______getting to the top of the mountain.
to 和the 是分开的！
答
stop sb.from doing sth.
keep sb.from doing sth.
prevent sb.from doing sth.是同义词组,都是阻止某人做某事 The heavy rain _填stopped或kept或prevented_（任何一个都行,把动词要变成过去式,因为表示动作发生了）___them_from _____getting to the top of the mountain.