William found it increasingly difficult to read，for his eyesight was beginning to  ．

It was too dark, and I couldn’t _______ the words written on the wall.

The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good ______

In the past ,the miners had to be extremely         to bear the uncomfortable conditions at mines.

---If you like the new house, I suggest you buying it.---But it's really too expensive. I can't______ it.