This aid is becoming increasingly popular in schools and institutions that can afford it. It permits the projection and manipulation of digitalized teaching content, both original and published. This aid is known as:

Our reasons for reading influence the way we read, that is, which reading subskill we make use of. Choose the alternative which presents an INCORRECT definition of the reading subskill provided.

A teacher needs to behave in different ways at the different stages of a lesson. These different kinds of behavior are called teacher roles. Choose the alternative which presents an INCORRECT teacher role according to the description provided.

The capitalized words in the sentence: “Glass, paper and ALUMINIUM CANS CAN all be recycled very EASILY” belong to the following word classes, respectively:

Consider the sentences below:

1. Global warming ___________ by the greenhouse effect.

2. When ice in the poles melt, sea levels ____________.

3. Carbon dioxide __________ the sun's heat.

4. An American scientist ___________ holes in the ozone layer.

Choose the alternative which presents the correct verb forms that complete the above sentences, respectively:

Choose the only correct sentence.

Choose the alternative that presents the passive voice equivalent of the following sentence:

Farmers are cutting down the trees to clear the land for farming.

The sentence: “Rainforests help to control global warming because they absorb carbon dioxide” could be rewritten, without change of meaning, as:

The linker BUTin “But carbon dioxide and other gases in the atmosphere trap the sun's heat” could be replaced, without change of meaning, by:

The words in the text that mean SECA, ENCHENTE, CALOReCHUMBOare, respectively: