It seems that she is a teacher.she _ _ _a teacher {同义句}

问题描述:

It seems that she is a teacher.she _ _ _a teacher {同义句}
He will travel around the world in a couple of months.
_ _ _he travel around the world?划线提问a couple of months
When he was 8 years old,he could speak English well.
_ _ _8 he could speak English well.{同义句}
明天上午就用!

seems to be
when will
since he was