Answer:
3. what is the most likely reason the mother's teeth are described in this way?
The reason behind this is that the author used a metaphor to describe the perception of the object to ease the process of interpretation.
4. Have entered Is written in the perfect past tense. Therefore is the correct answer.
Step-by-step explanation:
First of all, let's talk about question number three. In this poem, we find that the author is describing a certain situation. Therefore we will be able to observe elaborated sentences using literary devices to improve the description. In our case, the metaphor explains relations between objects that are not alike but a bond is established to build a connection.
In the second place, the phrase is talking about an event in the past that has finished, and the tense in which it has to be described is past perfect tense.