Inglés, pregunta formulada por sergioabelorte30, hace 5 meses

10. Scientists __________experiments while they __________ at university.
a. were doing / was studying
b. were doing / were studying
c. did / were studied
d. were did / were studying

Respuestas a la pregunta

Contestado por damianorojasluisange
6

Respuesta:

ES LA B

ESPERO QUE TE AYUDE

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