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Reading is to the mind ______ food is to the body.

   A. that                           B. which                      C. of which                  D. what

Reading is to the mind _____ food is to the body .

A．that         B．which        C．of which         D．what

Reading is to the mind ______ food is to the body.

　 A. that　　　　　 B. which　　　　　　 C. of which　　　　 D. what

As we all know , reading is to the mind______  food is to the body.

As we all know , reading is to the mind______  food is to the body.

A. that   B. what   C. as   D. where