问题
选择题
Half of the class ________ done most of the work. The left ________rather hard.
A．have ; is
B．has; is
C．have ; are
D．has ; are
答案
答案：A
此题重点考查主谓一致问题。根据语境可知the class是可数名词，the work是不可数名词。
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