18、Half of the class most of the work. Some of the work really difficult.
A.have done; is B.has done; are C.has done; is D.have done; are
科目：初中英语 来源： 题型：
Half of the class most of the work. Some of the work really difficult.
A.have done; is B.has done; are C.has done; is D.have done; are
科目：初中英语 来源： 题型：
Half of the class__________ most of the work. Some of the work ________really difficult.
A. have done ; is B. has done ;are
C. has done ; is D. have done ; are
科目：初中英语 来源：2008年八年级英语(下) 译林版 译林版 题型：023
Half of the class ________ most of the work．Some of the work ________ really difficult．
A．have done, is
B．has done, are
C．has done, is
D．have done, are
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