探究发现
①Some people have the idea that you can cross Canada in less than five days, but they forget the fact that Canada is 5,500 kilometres from coast to coast.
②The girls were surprised at the fact that ocean ships can sail up the Great Lakes.
③I made a promise that I would make him happy.
④He hasn't made the decision whether he will go there.
⑤A saying goes that where there is life, there is a hope.
⑥Do you know of his suggestion that we start our work right away?