Cybersecurity: An overview of cyber challenges facing the nation, and actions needed

Federal agencies and the nation’s critical infrastructure — such as energy, transportation systems, communications, and financial services — depend on Information Technology (IT) systems to carry out operations and process essential data. However, the risks to these IT systems are increasing—including insider threats from witting or unwitting employees, escalating and emerging threats from around the globe, and the emergence of new and more destructive attacks. Rapid developments in new technologies, such as artificial intelligence, the Internet of Things, and ubiquitous Internet and cellular connecti... Ver mais

Observe o período abaixo e assinale a alternativa que corresponde à voz passiva dessa construção:
They should have locked the jewels in a safe.

Marque a alternativa correta quanto às formas de voz passiva:

Which sentence is in the Passive Voice? Choose the CORRECT answer.

Leia o texto a seguir e responda a questão.

“He remembered the time he had hooked one of a pair of marlin. The male fish always let the female fish feed first and the hooked fish, the female, made a wild, panic-stricken, despairing fight that soon exhausted her, and all the time the male had stayed with her, crossing the line and circling with her on the surface.

He had stayed so close that the old man was afraid he would cut the line with his tail which was sharp as a scythe and almost of that size and shape. When the old man had gaffed her and clubbed her, holding the rapier bill with its sandpaper edge and clubbing her across the top of her ... Ver mais

Which sentence from the text is an example of passive voice?

The verb phrase in “where the foreign language is taught” (3rd paragraph) is in the

According to the Cambridge Dictionary, reported speech or indirect speech is the act of reporting something that was said, without using exactly the same words. In light of this information, the sentence “We’re going to win that case”, said by Biden, should be, in reported speech,

The Amazon Forest

The Amazon is often called the lungs of the earth and produces 20% of the world’s oxygen. For this reason, many people are trying to stop deforestation in the rainforest. Brazil, for example, is working hard to help the rainforest survive.

A few years ago, the Brazilian government put forward a plan called ARPA (Amazon Region Protected Areas). It had the support of many international agencies, including the World Bank, and the German Development Bank, KfW. The main aim was to build new areas of protected rainforest, maintain areas of the rainforest that hadn’t yet been destroyed, and s... Ver mais

Analyze the sentences according to structure and grammar use.
1. The underlined words in the sentence “This long, pointed stick was first used as a weapon…” is an example of active voice in the past tense.
2. The words in bold “they” and “their”, in the text, are being used as a personal pronoun and a possessive adjective, respectively.
3. The negative form of the following sentence: “Do exercises for your arms, legs, back, and neck…” is “Don’t exercise your arms, legs, back, and neck…”.
4. The word ‘properly’ in “it’s important to warm up properly before practicing the javelin.” is an adverb that means correctly or satisfactorily.

Choose the alternative which contains the correct sentences.