Answer:
Look out, there is a car coming!
Explanation:
If a car is coming you should be alarmed, so you add an explanation point. You add a comma because it represents a pause in speech. Which it's placed correctly in this sentence. :)
i don't think this one needs explaining.
<em>i knew grammarly would be useful one day </em>
questions 8 is a dialogue
they did not meet since they left school
Someone who heedful of danger is catious of danger.
