For areas that receive regular and plentiful rainfall, such detailed crop monitoring（监测）might not be useful or ;

Ten years ago the population of our village was_________ that of theirs.

I didn’t enjoy the play givenby those young people— ______

fternoon MrSmith will give us a report on nuclear energy , which is well worth _____.

The heavy snow lasted a few days so that many villages were cut off, thus causing much inconvenience to the villiagers