题目内容：

1 -- what's all that noise?
--just in front of the bus ___ an injured man,all covered with blood.
A,lies B,lying is
请问为什么要选第三人称单数的A 而不选表示状态的B选项？
2 -- Look at the trouble we're in.If only we ___our teacher's advice!
A,would have taken B,had taken
请问为什么选择过去完成时的B而不选择现在完成时的A
3--With the country's population reaching 1.6billion in the mid of this century,most of China's rivers,inclouding the Yellow River,_____.
A,is drying up B,will be drying up.
为什么选择B 而不能选择一般现在时表正在进行的A?
--How did you find the film
---____.I can't think too highly of it.
A.it's really amazing B.it‘s awful
为什么选A不选B？I can't think too highly of it.这句话怎么理解？
楼下的各位老师，第一题我知道是全倒装，只是不明白为什么lying is 不行，表状态不是也说得通吗？