1. I would love to 是个省略句,to后省去了动词.这种省略往往在对话中出现,如:
A: Would love to go to the cinema?
B: Yes, I would love to.
很明显,B 的回答中省去了go to the cinema.
2. The girl got herself into a serious situation ( ) she was likely to lose control over the motorbike.
该句是应该选D, 你的解释也对,先行词是situation.
3. The artist will not paint people or animals but he will paint anything ()
答案没错,应该选 B, 这里也是省略了动词paint.注意,to是动词不定式符号,其后的动词往往可以,按照习惯也应该承前省略.对回答你问题1所用的对话也是一个很好的例子.