Answer:
Hide
Explanation:
Either the babysitter or the kids hide the doll.
This would be the proper choices because the other sentences don't sound right.
I believe it is the last one
Answer:
Students who overestimate their performance are most likely to stop studying too soon.
Explanation:
Whenever a person overestimates their performance in any area they tend to have the feeling that they have done well with too little effort which normally makes them stop working, studying or trying too soon, this does not let them reach their maximum potential, as they do not consider that they must go the extra mile.