“Is John going away?” “I think so.He _____ for a better job, but he didn’t get it.”

在硫酸―磷酸介质中，用0.1mol／LK2Cr2O3溶液滴定0.1mol／LFe2＋溶液，其计量点电位为0.86V，则对此滴定量最适用的指示剂是()

A.06V)
B、二苯胺磺酸钠(0.84V)
C、二苯胺(0.76V)
D、次甲基蓝(0.36V)

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The boy knew his teacher _____the method of solving the math problem.

A.should
B.might
C.will
D.would

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