It took Edison a long time to invent the first light bulb(保持原句意思)Edison( )a long time ( ) the first light bulb

问题描述:

It took Edison a long time to invent the first light bulb(保持原句意思)
Edison( )a long time ( ) the first light bulb

spent      inventing

TOOK +TO INVENT

spent on sth固定搭配,把时间,金钱等花在某事物上

Edison(took )a long time (for ) the first light bulb