His cooperation is indispensable for this project.

Due to the heavy rain, school was cancelled.

He decided to build a single-story house.

A leech is a creature that sucks blood.

This dress is made of plain weave fabric.

We take a walk along the river every weekend.

The proportion of ingredients is important in this recipe.

These two variables are directly proportional.

His handwriting is very unique, and can be recognized immediately.

We approached the match with a belief in certain victory.