He fell off the bike ________.
| A．while he rode | B．while he was riding |
| C．while he is riding | D．while on bike |
If people change the wetlands to make for farms , the birds will not have enough to live .
| A．space , rooms | B． spaces , room |
| C．rooms , space | D．room , space |
Zhalong Nature Reserve is an importantarea of the rare crowned-cranes .
| A．alive | B．lively | C．living | D．lovely |
The boyhis father.
Heplaying football .
| A．look like, likes |
| B．is like , look like |
| C．looks like, likes |
| D．likes, is like |
When the tiger grow , it will grow a strong animal .
| A．into, into | B．up, up |
| C．up, into | D．into, with |
He much food the poor family during the hard time .
| A．provided , to |
| B．provided, with |
| C．provides with |
| D．provided , for |