By the time he was twelve, Edison __________ to make a living by himself.
He missed his mother very much and ________ crying.
I begged her not to tell anyone else, and she said she would ________.
I’ll never forget _________ you for the first time.
----It’s burning hot today, isn’t it ?----Yes, __________ yesterday.
There is no need to ______ angry words _______ me.