Cinco con cuatro
Cinco y media
Seis menos cuatro
Quince
Miguel y Elena (cerrar) la puerta<span>.
Translation:
Miguel and Elena (to close) the door.
The infinitive must be conjugated according to the subject, which is plural (Miguel and Elena). It must also be in present tense. The conjugation of cerrar for a plural subject in present tense indicative is cierran.
Answer:
</span>Miguel y Elena cierran la puerta.
