As you can see，the number of cars on our roads________ rising these days.
| A．was keeping | B．keep |
| C．keeps | D．were keeping |
Whenever I see Sally, I always ______her mother.
| A．think about | B．think for | C．think out | D．think of |
The teacher always makes his class so ______ and interesting for us.
| A．Lovely | B．living | C．live | D．lively |
There is no experience ______ is more exciting than skating on real ice.
| A．that | B．what | C．this | D．it |
–How did it ____that you missed the bus ?
- I’m sorry I got up late.
| A．come up | B．come about | C．come out | D．come on |
Jumping out of _______ airplane at ten thousand feet is quite _______ exciting experience．
| A．an; an | B．不填; an | C．不填; the | D．the; the |