—We were surprised to hear that the reason ________ she gave for her absence was ________ her mother was ill.

—Yes.We saw her mother was at the supermarket that morning.

A．why；that? B．which；that

C．that；because D．why；because

—We were surprised to hear that the reason________ she gave for her absence was________ her mother was ill.

—Yes，we saw her mother was at the supermarket that morning.

A．why；that? B．which；that

C．that；because? D．why；because

—We were surprised to hear that the reason_______ she gave for her absence was______ her mother was ill.

—Yes，we saw her mother was at the supermarket that morning.

A．why；that                   B．which；that     C．that；because                    D．why；because