This book is............to understand

1. This book is............to understand
a.too hard far  b.too hard than  c.far too hard  d.such too hard
2. The old man and the Sea, a novel about an old fisherman's harrowing adventure catching a huge fish, is one of Ernest Hemingway's...............book.
a.most famous  b.the most famous  c.are most famous  d.and most famous
3.The waves on the beach on the west coast of Florida are not as high..................those on the east coast
a.as  b.that  c.than  d.so
4.The man bought......................books that he needed assistance to carry them.
a.such many  b.such much  c.too many  d.so many
5.................250,000 species of fossils have been discovered in both organized, scientific searches and by sheer accident.
a.As much as  b.As many as  c.As many  d.so many
6.I'll write to you..............I can.
a.sooner than  b.as soonest as  c.so sooner as  d.as soon as
7. This one is pretties, but it costs..............as the other one
a. as much as  b.twice as much  c.as many  d.as soon as
8.Although both are mammals, the early stages of development on the part placentals fifer from................of marsupials
a.that  b.it  c.those  d.this
giúp mik với.