Answer:
1. She saw a moose on her way to school.
4. On their way home from the movies, the students saw their teacher.
Step-by-step explanation:
Grammatical errors can be based on the correct punctuation, or verb forms or subject-verb agreement, or even in the use of modifiers and their presence or location in the sentence.
Two sentences that do not have any grammatical errors among the given options are sentences 1 and 4. This is because, in these two sentences (sentences 1 and 4), the subject-verb agreement and the modifiers are in sync with the intended noun.
On the other hand, sentences 2, 3, and 5 have errors in their grammar usage because the modifiers used do not specify the noun it describes. It makes a confusing sentence, thereby making an error in the use of grammar.
Thus, the correct answers are options 1 and 4.