The workers insist that the company should take _____ measures to improve their working condition.
| A．attractive | B．effective | C．impressive | D．conservative |
To her joy, Della earned first the trust of her students and then ________ of her colleagues.
| A．that |
| B．one |
| C．ones |
| D．those |
________ everyone here, I wish you a pleasant journey back to your country.
| A．By means of |
| B．On behalf of |
| C．In search of |
| D．For fear of |
People develop ________ preference for a particular style of learning at ________ early age and these preferences affect learning.
| A．a; an |
| B．a; / |
| C．/; the |
| D．the; an |
—Thank you for the flowers.
—_______. I thought they might cheer you up.
| A．That’s right |
| B．All right |
| C．I’m all right |
| D．It’s all right |
From space, the earth looks blue. This is _______ about seventy-one percent of its surface is covered by water.
| A．why |
| B．how |
| C．because |
| D．whether |