这个答案应该是，应该上PE科的时候了，所以应该用to，而不是for,如果是for，通常理解是为PE，不太合规格，its time to PE class？
its a cap中文意思为：这是一顶帽子。
将其改为复数句为：They are wearing caps
以下是 "It's time for English" 的几个同义句：
It's time to have English.
English class is due now.
The time for English has come.
We're supposed to be having English now.
English is on the schedule now.
请注意，这些句子可能在不同的语境中有略微不同的含义或语气，但它们都传达了 "现在是上英语课的时间" 的概念。