Question

1 - Replace the letter with the appropriate tense of the verbs in parentheses to complete the sentences about the history of the radio.

James Clerk Maxwell A ________________ (not/create) the first radio. He B________________ (develop) the first radio-wave mathematical formula. In 1888, Heinrich Hertz C________________ (test) Maxwell’s assumption. The radio D ________________ (be) a subdivision of telecommunication. “When E ________________Oliver Lodge F ________________ (name) the coherer?” “In 1894.” In 1888, Temistocle Calzecchi-Onesti G ________________ (demonstrate) that a tube with iron filings conducted an electrical current. Radio communication H ________________ (involve) the transmission of electromagnetic waves. Before the 19th century, many scientists I ________________ (try) to invent something like the radio. Marconi J ________________ (notice) that electromagnetic waves K ________________ (travel) between two points separated by an obstacle.

Answer 1

Precisamos colocar os verbos no passado, conjugando-os, ou utilizando o "did", conforme a orientação dada pela questão.

Explicação:

James Clerk Maxwell didn't create the first radio. He developed the first radio-wave mathematical formula. In 1888, Heinrich Hertz tested Maxwell’s assumption. The radio was a subdivision of telecommunication. “When did Oliver Lodge name the coherer?” “In 1894.” In 1888, Temistocle Calzecchi-Onesti demonstrated that a tube with iron filings conducted an electrical current. Radio communication involved the transmission of electromagnetic waves. Before the 19th century, many scientists I tried to invent something like the radio. Marconi noticed that electromagnetic waves traveled between two points separated by an obstacle.

O verbo "name" não muda de forma porque há uso de "did" antes, na mesma frase.

Answer 2

O tempo apropriado dos verbos entre parênteses é:

• A. didn't create (não criou);
• B. developed (desenvolveu);
• C. tested (testou);
• D. was (era);
• E. did;
• F. name (nomeou);
• G. demonstrated (demonstrou);
• H. involved (envolvia);
• I. tried (tentaram);
• J. noticed (notou);
• K. traveled (viajavam).

Simple Past

Todos os verbos que completam esse texto estão flexionados no Simple Past (passado simples), já que o texto fala de ações, estados e eventos que ocorreram e terminaram no passado.

A maioria são verbos regulares, assim bastou acrescentar a terminação -ed para o caso das frases afirmativas. Nas frases negativas e interrogativas, o verbo fica na forma original e usamos o "did".

O único verbo irregular presente é "be" (ser/estar), que adquiriu a forma "was" na terceira pessoa.

Mais sobre Simple Past em:

https://brainly.com.br/tarefa/24651806