Question

8. The contract will        on October 1 ,2013. (effect)

这份合同将于2013年十月一日生效。

Answer 1

8. be put into effect/come into effect由于此处要表达的是合同在某一天开始生效，所以用动词短语be put into effect/come into effect比用be in effect这个表示状态的短语好。