MY MOTHER ... WORKED HARD WHEN SHE WAS YOUNG. A. USE TO B....

Question

164.  My mother ... worked hard when she was young.   A. use to     B. used to     C. to used to     D. not used to

Answer

164.  My mother ... worked hard when she was young.   A. use to     B. used to     C. to used to     D. not used to