Many things that were once considered useful and _____, for example, tobacco, is now thought harmful.
| A．beneficial | B．suitable | C．fulfilling | D．accessible |
Some of the scientists held the point ______ ______ the book said was right.
| A．what; what | B．what; that |
| C．that; that | D．that; what |
The living room is clean and tidy ,with a dining table already _____for a meal to be cooked.
| A．laid | B．laying |
| C．to lay | D．being laid |
Green vegetablesnutrients,vitamin A and C.
A. include; contain B. include; containing
C. contain; include D. contain; including
The control of ________ bird flu in China finally proved to be ________ great success.
| A．the; the | B．the; / | C．/; a | D．/; / |
My father____ a teacher, but now he works in a factory.
| A．was used to be | B．used to be |
| C．used to being | D．is used to being |