Question

My father has worked there ___________. A．since five year B．since 1990 C．for five years a

My father has worked there ___________. A．since five year B．since 1990 C．for five years ago D．five years

Answer 1

B

现在完成时的时间状语，since+时间点；for+时间段。Since 1990自1990年以来表示时间段故选B。