It will be able to in two weeks.这里的Be able to 是固定词组,还是able to 是固定词组?

问题描述:

It will be able to in two weeks.这里的Be able to 是固定词组,还是able to 是固定词组?

主语加 be able to do 是固定的句型 be的形式根据主语和时态变化