Classify the following statements as true or false and explain your reasoning: 1. O, sa, za – these are prepositions. 2. Prepositions are always written the same way. 3. Prepositions are always used with verbs. 4. With other words, prepositions are written together. 5. You cannot ask a question to a preposition. 6. A preposition is a part of speech.

Rationale:

• The provided text discusses prepositions in Russian. The task is to evaluate the truthfulness of given statements about prepositions based on general grammatical knowledge and the context of the image.

Analysis of Statements:

• 1. O, sa, za – these are prepositions. True. These are common Russian prepositions that indicate relationships between words in a sentence.
• 2. Prepositions are always written the same way. False. While many prepositions are written separately from the words they govern, some can be part of compound words or have variations depending on context. More importantly, the way they are *spelled* can differ (e.g., 'с' vs 'со', 'в' vs 'во'). The statement implies unchanging orthography, which is not universally true.
• 3. Prepositions are always used with verbs. False. Prepositions connect nouns, pronouns, or other parts of speech to verbs, nouns, adjectives, or adverbs. They are not exclusively tied to verbs. For example, "книга на столе" (book on the table) connects a noun ('книга') to another noun ('столе').
• 4. With other words, prepositions are written together. False. In Russian, prepositions are generally written *separately* from the words they govern. Compound prepositions exist, but the general rule is separation. This statement suggests they are written contiguously, which is incorrect.
• 5. You cannot ask a question to a preposition. True. Prepositions are service words. They do not have independent grammatical questions asked to them. Their meaning is derived from their relationship to other words in the sentence.
• 6. A preposition is a part of speech. True. In Russian grammar, prepositions are classified as a distinct part of speech (служебная часть речи – service part of speech).

Conclusion:

• Statements 1, 5, and 6 are true.
• Statements 2, 3, and 4 are false.

Ответ: 1, 5, 6 - верны; 2, 3, 4 - ложные.