you are aware of the trick used in advertisements ,I don’t think you are eager to buy.

________ is often the case with human beings, many animals sleep a lot when young, but sleep much less when they get older.

I think ______ is little possibility ______ she will be elected as monitor of our class.

Evidence has been found through years of study______ children’s early sleeping problem likely to continue when they grow up.

In some countries, _____ are called  “public schools” are not owned by the public.