___________ with the size of the whole earth, the biggest ocean does not seem big at all.
| A．Compare | B．Comparing | C．When compared | D．When comparing |
The teacher praised me for ________ progress I'd made, which was ________ great encouragement to me.
| A．the; / |
| B．the; a |
| C．/; a |
| D．/; / |
We all sighed with ________ relief when ________ plane finally landed safely.
| A．a; / |
| B．/; the |
| C．a; a |
| D．a; the |
This is our contribution to ________ world of the 21st century, ________ world of independence and mutual understanding.
| A．the; / |
| B．/; a |
| C．a; the |
| D．the; a |
Sarah looked atfinished painting withsatisfaction.
| A．不填；a |
| B．a; the |
| C．the; 不填 |
| D．the; a |
According to some students, ______ listening practice is still ______ must in Senior 3, because it helps promote the sense of language.
| A．the, a |
| B．the, \ |
| C．\, a |
| D．\, an |