My teacher was so widely learned that he was always ready to reply to all questions.

我的老师博学多才， 随时准备回答所有问题。

" Is this a thought-out plan? Am I to expect the same silence in reply to all my questions" ?

“这是一个经过深思熟虑的计划吗？我是否期望在回答我所有的问题时都保持同样的沉默” ？

I go through my phone and I take this opportunity to reply to all those messages I ignored throughout the day.

我检查了我的电话，并借此机会回复了我一整天都忽略的所有消息。