初中英语宾语从句!高手请进！谢谢

He said these flowers were from guangzhou.
My teacher said light traves faster than sound.
Jack didn't know if there would be a meeting in five days.
I want to know if they can speak french.
Tell me if the children are playing games.

he said that these flowers were from guangzhou.

my teacher told me that light tratravels fast than sound .

jack didn't know whether there would be a meeting in five days.

l want to know whether they can speak french.

tell me if the children are playing games.

He said these flowers were from guangzhou.
My teachewr told me light travels faster than sound.
Jack didn't know if/whether there will be a meeting in five days.
I want to know if/whether they can speak french.
Tell me if/whether the children are playing games.

这些花是从广州进来，我的老师告诉我 ，光的速度比声音快
杰克不知道；将会在这里的五天内聚会
我想要知道，他们会说法语吗？
告诉我，这些孩子正在玩游戏吗？
你写的英语问题很多的
很乱的呀。