问一些英语问题1.____ ,she can swim pretty well,thanks to her teache

问一些英语问题
1.____ ,she can swim pretty well,thanks to her teacher.
A.From then on B.From now on(选哪个?为什么?)
2.Are you going to have a party this sunday?
----- _________.
A.I hope so B.I think so C.I don't hope so D.I don't think so(选哪个?为什么?)
3.Are the pyramids of Mexico not as high as the pyramids of Egypt?
-----No,they aren't.(翻译答语)
4.feet表示单位时是什么意思?如"151 feet tall".