Mr Smith has two______     , both of whom are teachers in a school.

Mr Smith has two______     , both of whom are teachers in a school.

A．brothers-in-law                               B．brother-in-laws

C．brothers-in-laws                       D．brothers-in law

Mr Smith has two _______  , both of whom are teachers in a school.
A．brothers-in-law    B．brother-in-laws
C．brothers-in-laws    D．brothers-in law

Mr Smith has two______     , both of whom are teachers in a school.

Mr. Smith has two ________ , both of whom are teachers in a school.

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