Final answer:
The statement 'The participial phrase modifies the word commuters' for the first question and 'The sentence includes a past participle' for the second question are not true. The review questions were answered by identifying the types of phrases such as prepositional, participial, and infinitive phrases within the given sentences.
Step-by-step explanation:
The sentence 'The cars passing by are filled with commuters' includes a present participle, which is 'passing'. The participial phrase in this sentence is 'passing by' and it modifies 'cars', not 'commuters'. This phrase is essential to the meaning of the sentence, so no commas are needed to set off the phrase. Therefore, the statement that is NOT true is that 'The participial phrase modifies the word commuters'.
For the sentence 'Family names derived from people's surroundings were common in the Middle Ages', the verb 'derived' functions as a past participle modifying 'Family names'. Hence, the statement that 'The sentence includes a past participle' is true.