2) Both mars and earth have carbon dioxide ice clouds
Answer:
2. People should never handle food when ther’re sick
Explanation:
because it uses the world “should”
I am not sure how to explain this so i'll give you an example..
I <u>would have had</u> it done before homework
In this sentence, there are 2 words that represents past. "Would" and "Had", which makes up a past perfect.
I think someone is knocking at the door
