It is the protection for the trees___________ really matters, rather than how many trees are planted．
| A．what | B．that |
| C．不填 | D．which |
The Great Wall is _________________ tourist attraction that millions of people pour in every year.
| A．so a well-known | B．a such well-known |
| C．so well-known | D．such a well-known |
They began to consider what use could ___ the natural resources（资源）.
| A．be made from | B．be made of |
| C．be made up of | D．be made into |
____ number of students in our class ____ larger than that in theirs.
| A．A, is | B．The,is |
| C．A , are | D．The , are |
He refused to ___ to the terrible weather only at the last moment because he had no choice.
| A．give up | B．give in |
| C．give away | D．give off |
It’s known to all that life’s ____ is full of hardships.
| A．tour | B．trip | C．travel | D．journey |