2. The earth became so violent that it was not clear whether the shape would last or not. violent: a. 暴力的,激烈的 violently adv. a. She was in violent temper. 她暴跳如雷。
主语从句,it为形式主语,whether引到真正 的主语。(注:有or not时,只能用whether 不用if)
[仿写] 比赛是否被推迟目前还不清楚。 the competition would be put off.
It was not clear whether