题目

At the age of ourteen,Bell sent to London to...
At the age of ourteen,Bell sent to London to _____
live for a year with his grandfather,that took good care _____
of him.A year late,young Bell returned to Scotland._____
After working for time with his father,he bagan teaching_____
speech at a school.His free time was devoted to study _____
sound.Before he studied the human voice and the _____
vibrations(振动)that goes to make up sound,he found that the_____
voice was not a simple thing.So he continued on with his_____
studies and his teaching until at the age of tewnty-third _____
he moved with his family to Canada._____

提问时间：2020-11-24

答案

At the age of fourteen,Bell 【sent 】to London to _was sent____
live for a year with his grandfather,【that 】 took good care _who____
of him.A year【 late】,young Bell returned to Scotland. _later____
After working for 【 time 】with his father,he bagan teaching a_time____
speech at a school.His free time was devoted to【 study 】 _studying___ _
sound.【Before】 he studied the human voice and the __After___
vibrations(振动)that 【goes】 to make up sound,he found that the _went____
voice was not a simple thing.So he continued【 on 】with his __删掉___
studies and his teaching until at the age of【 tewnty-third 】 _twenty-three____
【 】he moved with his family to Canada. _when____