All the citizens strongly insist those found _____ "harmful" advertisements in the street should be punished strictly．
| A．putting up | B．being put up |
| C．put up | D．to be putting up |
34．Wow! Look at the man and his horse ________are running down the road.
A．which B．that C．who D where
33．A cool rain was falling_________with snow causing heavy traffic．
A．mixed B mixing C．to mix D．having mixed
32．Hesitating what to do，________．
| A．so let’s not go outing | B．the tour was cancelled |
| C．but we should still take the tour | D．we had to stay home |
31．The man stopped his bicycle beside the car______it had a broken chain．
| A．or | B．until | C．as | D．Yet |
30．Mike has an active mind；he can retell a story_________anybody else in the classroom．
| A．more vividly than | B．much vivid than |
| C．as vivid as | D．so vividly as |