As the quality of the city’s air continues to give rise to ________, the residents are encouraged to drive cars less often.
| A．descriptions | B．compromise | C．concerns | D．emergency |
We thought it strange ________ Xiao Zhang did not take part in the sports meet of our school.
| A．why | B．whether | C．when | D．that |
______ the challenges, I become stronger than I used to be.
| A．Rather than | B．Thanks to | C．Instead of | D．As a result |
A survey of the opinions of expertsthat three hours of outdoor exercise a weekgood for one’s health.
| A．show; are | B．shows; is | C．show; is | D．shows; are |
Only when you showed the pass to the guardto come out our school．
| A．you allowed | B．allowed you |
| C．you were allowed | D．were you allowed |
When you come into our school yard, you will notice our beautiful school _____by green trees.
| A．surrounding | B．surrounded |
| C．to surround | D．being surrounded |