请选择ABCD(Q,b1z)c0[-i,@;\,}7J He was made__________ thirteen hours a day by his boss．1x/Z:p'A8w+O0e'~
A． to work1x/Z:p'A8w+O0e'~
B． work1x/Z:p'A8w+O0e'~
C． is on1x/Z:p'A8w+O0e'~
D． are in1x/Z:p'A8w+O0e'~