The question asks us to choose the most appropriate word to complete the sentence, indicating a cause-and-effect relationship. We need to select the option that correctly links "the train arrived late" with "heavy rain" as its reason.
Correct Option: B) due to
"Due to" is a prepositional phrase that means "because of" or "owing to." It is correctly used before a noun phrase (like "heavy rain") to state the reason for something. The sentence "The train arrived late due to heavy rain" clearly and grammatically conveys that heavy rain was the cause of the delay.
This question tests the correct usage of indefinite articles ('a' and 'an') before a noun. The choice between 'a' and 'an' depends on the sound of the word immediately following the article.
Therefore, the complete sentence should be: "I have never seen an elephant before."
Correct Option: B) an
This question tests knowledge of tag questions, specifically how to form them when the main clause is an imperative or a suggestion starting with "Let's".
Correct Option: C) shall we
This question tests the correct usage of indefinite articles ('a' and 'an') based on the sound of the word that follows. The choice between 'a' and 'an' depends on whether the next word starts with a vowel sound or a consonant sound.
Correct Option: B) an
This question tests the correct usage of prepositions. The verb "interested" is typically followed by a specific preposition to indicate the subject of interest. We need to identify the preposition that correctly completes the phrase "interested _____ photography."
Correct Option: C) in
The question asks to find the correct word to substitute "one pen" in the given sentence. We need to identify a pronoun or a word that can refer to a single, specific item previously mentioned, especially when distinguishing it from another item of the same kind.
Correct Option: B) One