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。