请根据汉语意思完成下列英语句子（每空一词）
1.这里曾经有座桥
There ____ ____ be a bridge here.
2.迈克尔来中国已经有十年了.
Michael has ____ in China ____ ten years.
3.没有你的帮助,我不可能这么快就完成工作.
____ your____,I couldn't finish the work so quickly.
4.请问,我到哪里付款?
Excuse me ,where can I ____ ____ these things?
5.你什么时候把那本书还给我?
When will you____ the book ____ me?