Question

select the correct answer.
which verb form correctly completes this sentence?
cristina y ricardo ______ lavar los platos.
a. van
b. deben
c. necesita
d. tiene que

Explanation:

1. Option A: "van" would form "van a lavar" (are going to wash), but the sentence lacks the preposition "a", so it is grammatically incomplete here.
2. Option B: "deben" is the plural present tense of "deber" (must/have to), which agrees with the plural subject "Cristina y Ricardo" and correctly pairs with the infinitive "lavar" to form a grammatically complete and logical sentence.
3. Option C: "necesita" is singular present tense, which does not agree with the plural subject.
4. Option D: "tiene que" is singular present tense, which does not agree with the plural subject (the correct plural form would be "tienen que").

Answer:

B. deben