Please help. Thank You.

1.
The stem-changers in the current section are similar to those in the previous section except these stem-change "o" to "oe."

A.) true
B.) false

2.
Of the following, which is not a stem-changing verb?

A.) almorzar
B.) comer
C.) volver
D.) contar
E.) poder

18.

If you have a fiesta de sorpresa for someone, that person does not know about it.

*A.) true
B.) false

19.
The mother of the person having the birthday is the "cumpleañero."

A.) true
*B.) false

I don't have the first two answered.

1. To determine whether the statement is true or false, you need to understand the concept of stem-changing verbs. Stem-changing verbs have a change in the vowel of their stem in certain forms of the verb. In the given statement, it says that the stem-changers in the current section are similar to those in the previous section except they stem-change "o" to "oe."

To verify this statement, you need to know the stem-changing verbs that end in "-ar" and "-er" in Spanish. In the previous section, you may have learned that certain verbs with the stem vowel "o" change it to "ue." Examples of such verbs are "volver" (to return) and "almorzar" (to have lunch).

In the current section, you are being asked whether the stem-changers also change "o" to "oe." To answer this question, you can review the newly introduced stem-changing verbs in the current section. Check if any of them have the pattern of changing "o" to "oe" in certain forms. If you find such verbs, then the statement is true. Otherwise, it is false.

2. To find out which of the given options is not a stem-changing verb, you can analyze each verb individually. Stem-changing verbs, as mentioned earlier, have a change in the vowel of their stem in certain forms of the verb.

Examine each option:
A. "almorzar" - This verb means "to have lunch." It undergoes stem-changing by changing "o" to "ue" in certain forms (e.g., "almuerzo," "almorzamos").
B. "comer" - This verb means "to eat." It does not undergo any stem-changing.
C. "volver" - This verb means "to return." It undergoes stem-changing by changing "o" to "ue" in certain forms (e.g., "vuelvo," "volvemos").
D. "contar" - This verb means "to count." It does not undergo any stem-changing.
E. "poder" - This verb means "to be able to." It undergoes stem-changing by changing the "o" to "ue" in certain forms (e.g., "puedo," "podemos").

Based on this analysis, you can determine that option B, "comer," is not a stem-changing verb since it does not have any vowel change in its stem.

For the remaining questions, let's proceed:

18. The statement claims that if you have a "fiesta de sorpresa" (surprise party) for someone, that person does not know about it. To confirm whether this statement is true or false, you could think about the nature of a surprise party. Generally, a surprise party is organized without the knowledge of the person being surprised. So, if the person knows about the party, it wouldn't be a surprise anymore. Therefore, the statement is true.

19. According to the statement, the mother of the person having the birthday is the "cumpleañero." To determine the accuracy of this statement, it helps to understand the meaning of "cumpleañero." In Spanish, "cumpleañero" is not a commonly used term. The mother of the person having the birthday is referred to as "madre" or "mamá." Therefore, the statement is false.