Not once ________ to Michael that he could one day become a top student in his class.
| A．occurred it | B．it did occur | C．it occurred | D．did it occur |
相关试题
By the time he was ten,Edison______experiments in chemistry.
| A．had already done | B．already had done |
| C．was already doing | D．already did |
______,the boy couldn’t enter his house.
| A．Since the key had lost | B．T he key being lost |
| C．Lost the key | D．Having lost the key |
Be quick,or you’ll get______in the rain.
| A．to be caught | B．catching | C．to catch | D．caught |
He insisted______the working site.
| A．to be sent to | B．being sent to |
| C．on being sent to | D．that to be sent to |
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