我想知道——你能帮我拿这些书吗？

I ___wonder - could you help me carry these books?

我想知道您能否把黄油递给我？

I ___wonder whether you could pass me the butter?

我想知道您能否给我一些关于该地区旅游景点的信息？

I was ___wondering if you could give me some information about places to visit in the area?