245 Results for Subject Compliance Worksheets Edition 4 Exercise 4: Correction Reading for Subject-Verb Convention Error Paragraph Insert topics and underline verbs. Make an arrow in the verb its subject. If the sentence has a subject-verb conformity error, remove the wrong verb and write the correct verb form about it. Beaver The beaver, Canada`s national animal, has some unusual characteristics. An unusual fact about beavers is their size. The beaver is the largest rodent in North America and weighs between 13 and 35 kg. He spends a lot of time in the water, so his feet are large and float to swim. The beaver tail, wide and flat like a paddle, also helps him swim. The thick submarine keeps the beaver warm and dry, even in very cold water. In fact, beavers are known to stay underwater for up to fifteen minutes in icy ponds. Beavers also have long teeth that grow all their lives. They use these strong teeth to cut down trees that they use as food and shelter. Another unusual fact about the beaver is that it is one of the few animals to change its environment.

Beavers create ponds by building dams with roots, sticks, mud and stones. Each beaver family builds a lodge or nest on the banks of the river or in the middle of a pond. They build an underwater entrance to the lodge. The underwater entrance protects them from their enemies. Beavers are also very social animals. They communicate with each other not only by making noise with their mouths, but also by hitting their large flat tails on the water. The social life of the beaver is complex and focuses on the female. These very special animals are found in every province of Canada.