Did you find impossible for him to tell the truth?
| A．this | B．it | C．that | D．what |
102 _______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
| A．As | B．That | C．This | D．It |
101. I’d appreciate ____ if you would like to teach me how to use the computer.
| A．that | B．it | C．this | D．you |
100.As the busiest woman in Norton,she made_________her duty to look after all the other people’s affairs in that town.
| A．this | B．that | C．one | D．it |
99.The chairman thought___________necessary to invite Professor Smith to speak at the meeting .
| A．that | B．it | C．this | D．Him |
98.—There is still a copy of the book in the library. Wall you go and borrow ________?
—No, I’d rather buy ________ in the bookstore. 
| A．it;one | B．one;one | C．one;it | D．it;it |