My sister was always ________ and careful while I would get excited and upset by the slightest thing.[ ]

As she is a _____ visitor to our house, we look on her as a part of our family.

Here is a train that has just come in, with crowds of people _____ off it.[ ]

下列各项中，没有语病的一项是（ ）

The topic, which many people ______ a small one, will actually have a great influence _____ us.