—How do you deal with the disagreement between the company and the customers?
—The key _______ the problem is to meet the demand _______ by the customers.
| A．to solving, making | B．to solving, made |
| C．to solve, making | D．to solve, made |
He didn’t ________ what I read because his mind was on something else.
| A．hold on | B．catch on |
| C．take in | D．get over |
Nobody but doctors or nurses and those ________ by Dr Li ________ to enter the patient’s room.
| A．being invited；allowed |
| B．are invited；are allowed |
| C．invited；is allowed |
| D．invited；are allowed |
I wish that you ________ such a bad headache because I’m sure that you would have enjoyed the concert.
| A．hadn’t | B．didn’t have had |
| C．hadn’t had | D．hadn’t have |
Calculations，which are astronomically exact，have been made ________ with the use of computers.
| A．possible | B．it possible |
| C．possibly | D．to be possible |
What do you think of the suggestion ________ we organize a football club?
| A．which | B．whether |
| C．that | D．what |