Is this conjunction a coordinate or subordinating conjunction? "The doctors will know more once the test results are back."

Correct the dangling modifier: To double-check my hypothesis, the experiment was conducted again.

Identify the prepositional phrase in the sentence: The cat slept on the warm windowsill.

Identify the subject in the following sentence: The quick brown fox jumps over the lazy dog.

Choose the correct form of the verb: Neither the teacher nor the students (is, are) ready for the exam.

Identify the verb in the following sentence: The dog barked loudly at the stranger.

Choose the correct form of the adjective: She is the (tall, taller, tallest) girl in the class.