He denied the fact of the crime.

I decided to take a painkiller because I have a severe headache.

This rodenticide is very effective.

I do laundry using synthetic detergent.

He has already finished writing the report, so we use the present perfect form.

He traveled east, west, south, and north.

I repaired the broken vase using instant glue.

She is learning the grammar of the present progressive form.

The phrase 'the good and bad deed cancel out' perfectly describes his past actions.

This lime sulphur is very effective in preventing pests and diseases in fruit trees.