You are under 18 years old, so it is for you to join the Trailwalker.
| A．impossible | B．meaningful |
| C．necessary | D．important |
Thanks for ________ me to cross the road(马路)．
| A．help |
| B．helps |
| C．helping |
| D．to help |
It usually takes about ten minutes ________ to school．
| A．by bike |
| B．on a bike |
| C．to ride |
| D．ride |
—What do you ________ this new club？
—It’s nice and big．
| A．get to |
| B．think of |
| C．live to |
| D．go to |
The workers will build a new railroad ________ the two cities．
| A．since |
| B．between |
| C．as |
| D．during |
Lin Tao is ________ from a small village．
| A．a 11 years old boy |
| B．a 11-year-old boy |
| C．an 11-years-old boy |
| D．an 11-year-old boy |