Question

. Work begins _____ eight o'clock, Monday through Friday.

A. in
B. to
C. at
D. on

Answer 1

Work starts at eight o'clock, Monday through Friday

Es la B

Answer 2

Respuesta:
Work begins at eight o’clock, Monday through Friday.
Explicación:
•Se usa “at” para tiempos del día, por ejemplo, at 7 o’clock, at breakfast time.
•En expresiones como: at the weekend, at night, at New York