They agreed to rent the house ______ the roof should be repaired.
| A．on condition that | B．as soon as | C．when | D．unless |
. We all __________ Yang Li Wei, who is the first Chinese astronaut to take a journey to space.
A. look down upon B. look up to C. add up to D
. put up with
Nature has provided Shangri-la with endless natural treasures, _________the land a happy home for the local people.
| A．to make | B．making | C．made | D．having made |
. When they came to the center of the forest, the visitors found
themselves ____ ___ by wildlife.
| A．surrounding | B．surrounded | C．to surround | D．surround |
. Allow children the space to voice their opinions, _______ they are different from your own.
| A．unless | B．until | C．even if | D．as if |
My brother, ________ is in the army now, used to be an artist.
| A．who | B．that | C．whom | D．which |