英语短文改错In the morning of Novermber 18th,1755,an earthquakesho

英语短文改错
In the morning of Novermber 18th,1755,an earthquakeshook Boston .John,a professor at Harvard College felt a quake and woke up."l rose and found to be fifteenminutes past four."He hurried to downstairs to the clock ,the quake had only thrown a key from the mantel to the floor.
The clock had stopped because John put some long glass tube he was using for an experiment into the case for safekeeping.The quake had been knocked the tubes over and blockedthe pendulum.So Jphn had the exactly time of the earthquake.