Answer: Anger
Explanation: Because that person is already sad.
Each guide was helpful, but we forgot to thank them.
You should use the plural pronoun, because we don't know whether the guides were only males, or females, or whether there were both sexes.
Alejandra has come across a section in her physics textbook detailing the affect of wing span on an airplane’s cruising speed. How should she adjust her reading speed?
Answer: the best way for her to adjust her reading speed is Decrease her speed and try to memorize the vocabulary
