it is sometimes是什么句型

问题描述

精选答案

Only in this way can you make progress in English, though it is sometimes tiring and boring.虽然这个办法有时候很无聊、很累人，但是只有用这种办法你才能在英语上取得进步。

It is sometimes required that we work overtime and that we change shifts four or five times a month.有时我们需要加班，一个月要换班四到五次。