Please help with some grammar.

Determining sentence type match each sentence with its type. i looked over my shoulder, because ! had an eerie feeling simple the child ran to greet the dog, and the teddy bear fell to the ground. compound-complex the leaf broke loose from the gnarled branch complex while the moon was full, the wolves howled and the dogs slept. compound

Suppose you need to verify how correctly use commas you open ur english textbook and scan the chaper titles in which one would most likey find the information you need

3. what is the purpose of a lead sentence or paragraph? to display your most convincing reasons and arguments to you revise the overall structure of your work to interest readers and introduce your writing style to add details and elaborate on your ideas