he regretted not registered for military service last spring

The local residents suspected the authorities ____ having kept the pollution level secret from the local people.

He denied having polluted the environment, ____ no one believed him.

Thank you for having ____ the information about global warming.

He regretted ____ killed and eaten several rare species.

His company was fined ____ dumped tons of toxic waste near the residential area.

These students were rewarded ____ actively taken part in voluntary activities.

She was praised ____ donated a lot of money lớn the wildlife protection organisation.

I remember ____ advised you lớn stop hunting endangered animals.

The local authorities were blamed ____ ignored the pollution issues in the area.

It is not easy at all lớn get a good job without any ____ qualifications.

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At the ____ level, you can join three-year or four-year colleges.

Hugh is quite worried because he hasn't ____ for the end-of-term test.

Any pupil caught ____ was made lớn stand at the front of the class.

They ____ sacrifices so sánh that their only child could have a good education.

A university is an institution of higher education and research, which grants ____ degrees at all levels in a variety of subjects.

You have lớn be highly ____ lớn bởi well in these subjects.

I can't cope well ____ all the homework I've got lớn do!

____ education normally provides undergraduate and postgraduate education, as well as vocational education and training.

You'll find plenty of books on the ____ of business studies in the library.

I wonder if you could tell mạ who was awarded the ____.