We can park our car on ______ side of the street. How lucky we are!

_____enough thought to who thereaders of the book would be，the publisher made awrong decision andsuffered a heavy financial loss．

The theory _____ correct immediately the experiment was completed.

30. Even if you are an experienced teacher, you sometimes ____ make some mistakes.

I walked out of the cinema, ______ toreturn to see the wonderful film next Sunday.