The problem he referred to _____ difficult, but is isn’t at all.A．must beB．seemi_刷题宝

题干

The problem he referred to _____ difficult, but is isn’t at all.

A．must be

B．seeming

C．seems

D．seem

上一题下一题 0.85难度单项选择更新时间:2010-08-11 11:27:24

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