Allen had to call a taxi because the box was ____ to carry all the way home. 

Here I can only give you some purely ___ views of how we can control the situation.

The reading club in our school welcomes those ________ of detective stories. 

Education in government colleges is very cheap, but if you go to the _____colleges, it is much more expensive.

We saw _____farms which were built more than a hundred years ago.