虚拟语气的问题：1. If he ___(not hurt) his leg in the accident, he ___(join in) the coming sports meet.答案是填hadn't hurt , would join in ,为什么不是填hadn't hurt , would have joined in ?2. Is anyone burning something? It smells as if something___ (be) on fire. 请高手说明一下这句为什么是陈述语气而不是虚拟语气?这句话应该怎么变,才是虚拟语气的句子呢?3. But for Mr. Liu's help, I ____(got) the scholarship.这本是选择题的,答案选了A wouldn't have got ,B是shouldn't have got ,B这项有什么错吗?不可以也是B吗?4.I wish I ____ (know) what is happen

虚拟语气的问题：
1. If he ___(not hurt) his leg in the accident, he ___(join in) the coming sports meet.答案是填hadn't hurt , would join in ,为什么不是填hadn't hurt , would have joined in ?
2. Is anyone burning something? It smells as if something___ (be) on fire. 请高手说明一下这句为什么是陈述语气而不是虚拟语气?这句话应该怎么变,才是虚拟语气的句子呢?
3. But for Mr. Liu's help, I ____(got) the scholarship.这本是选择题的,答案选了A wouldn't have got ,B是shouldn't have got ,B这项有什么错吗?不可以也是B吗?
4.I wish I ____ (know) what is happening upstairs. 答案解释：表示与现在或当时事实相反的愿望,不是很理解这道题.
5. “我多希望他能顺利通过考试”这句是虚拟语气的句子吗?应该不是吧,对吗?非常感激!