by a greater demand for green products, the food company has set higher standards to ensure the quality.
| A．Driven | B．Being driven | C．To drive | D．Having driven |
26．He never regretted the anxious hours he had had ______ for the missing papers．
| A．search | B．searching | C．searched | D．to search |
25．At present, the butter factory is still polluting the river though it ______ to stop.
| A．ordered | B．has ordered |
| C．will be ordered | D．has been ordered |
24．____, the disaster in Haiti shows once again that even among the worst, there is always hope．
| A．As sad it is | B．It is as sad | C．Sad as it is | D．Sad as is it |
23．Looks are not________. It's what's inside you that really matters．
| A．anything | B．something | C．everything | D．Nothing |
22．It is__________comfort for _____ patients to be close to their loved ones.
| A．a, the | B．/; the | C．a, / | D．the, the |