Questões de Inglês - Pronome relativo | Relative clauses para Concurso

In the sentence “The book begins by cataloguing the various components that typically comprise a nun's habit” (third paragraph), the word “that” is a pronoun used at the beginning of an adjective clause (a dependent clause that modifies a noun). Besides “that”, other English relative pronouns are “who” and “whose”.
Based on the information above and on formal grammar rules, choose the option that provides a sentence in which the relative pronoun is used correctly. 

Identify the alternatives below as ( T ) true or ( F ) false.
( ) The underlined word in “… it helps to know more about hot air balloons themselves.“ is a relative pronoun.
( ) The preposition in the following sentence “…keeping the balloon floating above the ground.” means that the balloon is floating over the ground.
( ) The words ‘actually’, ‘push’, and ‘major’ mean in Portuguese: ‘atualmente’, puxar’ and ‘maior’.
( ) The negative form of “A hot air balloon has three major parts: the basket, the burner, and the envelope.” is “A hot balloon doesn’t have three major parts: the basket, the burner, and the envelope.”
( ) The tense used in the question “Have you ever wondered what keeps a hot air balloon flying?”, is an example of Past Perfect.

Choose the alternative which presents the correct sequence, from top to bottom.

Considering morphology, the underlined word in "We committed ourselves to working for its entry into force at the earliest opportunity." is a/an: