Final answer:
The missing indirect object pronouns are 'le' and 'nos'. The correct form of the verb 'gustar' is 'gusta'
Step-by-step explanation:
The missing indirect object pronoun in the sentence 'Javier manda lápices a su novia' is le. The sentence should be 'Javier le manda lápices a su novia'.
In the sentence 'El estudiante habla mucho', the missing indirect object pronoun is nos. The sentence should be 'El estudiante nos habla mucho'.
In the sentence 'A nosotros nos gusta comer enchiladas', the correct form of the verb gustar in the present tense is gusta.
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