ANSWER
Two different species of mice migrated to the river from different directions.
EXPLANATION
Solved scientifically in my head.
This is because the sound you make when you say x is ex thus using a but when you make the b sound it sounds like be.
Answer:
High expectations to be put upon you.
Explanation:
I think that having high expectations to be put on you is lighter that having a disadvantage and having to work hard because depending on what it is you're doing, you probably won't have to necessarily meet the high expectations but that doesn't mean that you will be looked down upon. You will still probably have many chances to prove yourself and be enough, whereas to having a disadvantage, depending on what the disadvantage is, there will be lots of work and having that disadvantage doesn't help in any way and you probably won't have the opportunity to change.
Answer:
Its either the first option (on the left)
or the bottom option on the left
(other words its either "A study found that playing certain games gave students more confidence" or "video games have benefits in the classroom besides grabbing students interest"