The new law has come into _____; surely it will have _____on industry of the country.

 Be sure to read the _______ carefully before you take the medicine so that it can function better.

Tom’s and John’s＿＿＿＿＿came to London last week．

It is not intelligence alone that brings success but also the _____ to succeed and the courage to believe in yourself.

Although I had read the book assigned by the professor several times, it didn’t make any______ to me.