如何使用 "think" 造句

1. You think the plane is bad ?
你觉得飞机上很糟糕?
2. I think people would know .
我认为人们会知道。
3. Investors think it might be .
投资者认为有这种可能。
4. Some seem to think so .
有些人是这样认为。
5. Does this letter reflect how you really think ?
这封信反映你的真实想法吗?