1. 连词that(无词义, 不作成分, 不能省 略);whether(是否),if不能位于句首。
That he will come and help us is certain. Whether we will succeed is still a question. It is not known if he will come.
3.连接副词when(ever), where(ever), why, how(ever), how long, how often, how soon, how far, how many / much 等.
When the test will be given is not yet decided. How much we can spend must be agreed on.
What they said is true. 主语
We had better think whether the food we
eat will give us enough nutrients. 宾语
But the problem is that most of the senior
three students don’t care about what they
He told me the news that our team won the match. He told me the news that was very exciting. We are interested in the news that some foreigners would visit our school. We are interested in the news that he told us.