They missed the school bus, _____ they were late for class.
| A．or | B．but |
| C．because | D．so |
相关试题
There isinsect on the ground. The child is very interested in it.
| A．a | B．/ | C．the | D．an |
People have learned a lot from
studies．
| A．science | B．scientific |
| C．scientist | D．sightseeing |
with the police.
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