My friend Martin was very sick with a strange fever; ________， he could neither eat nor sleep.[ ]

________ some teenagers don’t realize is ________ difficult life can be after they get addicted to drugs

Mary, let’s go to the bookshop thisweekend. Will you be ______—Sorry, but I’m going to visit my uncle inthe countryside.

ms to some experts that 56．com, youku．com and tudou．com _____ 90% of the videomarket in this area．

They each a book. Each of them from China.