The new law to punish the drunk driver has come into           since it passed.

Eric was well prepared for the computer test so that he could be positive about passing it on his first________.

 ---What _______ do you have for Daniel?--- I think he should study harder than before.

There might be life on other planets, but so far scientists haven't found enough ________ to prove it.

A ______ is something we buy to help remind ourselves of a place we have visited.