Answer:
The present perfect continuous tense (also known as the present perfect progressive tense) shows that something started in the past and is continuing at the present time. The present perfect continuous is formed using the construction has/have been + the present participle (root
The correct answer is c) past.
Past (preposition) - from one side to the other of something, or in front of something.
Rephrased: He passed his grandmother's house on his way to school.
Passed - from the verb <em>to pass</em>, past tense, coudln't be used in this sentence.
Passet is not a word.
Pasted - past form of the verb <em>to paste, </em>does not fit in the context.
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