The correct answer is b): Under that shelf, in the corner, you will find your missing sock. The comma is needed to emphasise where exactly the missing sock is.
The correct answer is A) us; indirect object.
The pronoun has to be us because we are looking for an object, and we is a pronoun used for a subject.
Also, it is indirect object because when there are two objects in a sentence, the rule is that the first object is indirect, and it is followed by a direct object. The direct object in this sentence is the old newspapers, which means that the indirect object is John and us.
Baby-sitting is an easy way to earn money. All you have to do is know how to follow directions. For example, the child you are taking care of needs to do his/her homework, eat dinner, take a shower, and go to bed, than all you have to do is make sure that all of this gets done before the parents get home. It's that simple! If you do a really good job, the parents might even pay you extra. Baby-sitting can be very fun; but also very tiresome. You are putting someone's life in your hands. So you have to be very responsible. Just remember, don't be rude, and definitely don't take your eye off of the kid. That's just trouble waiting to happen!