Letter a, "He wants to arrive on time." is a complete sentence because it makes up a full idea, as to when the rest do not.
The answer is B hope that helped
The answer is: [C]: "He threw his bag on the bed, he sat down and sighed."
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D. meeting one particular dog
A gerund phrase begins with a -ing word and then includes any modifiers and objects, so A, B and C are not the correct answers.
The plural form of "citizen" is "citizens" or "people of such and such place"
