If you have really been studying English for so long, it's about time you ______ about to write letters in English.
选项里有 should be 和 were,答案选了 were。这个句型不是用“should+动词原形”或者“动词过去式”都可以嘛?那为什么不选 should be呢?求解答!谢谢各位老师!
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It's (about,high) time +句子应该用虚拟语气,用过去式表示现在,不用should +verb形式。具体可查阅Michael Swan的PEU Its time 词条有解释。