问题描述：
第一题为什么选C,第二题为什么选B不选A,
1.The number of people invited___ fifty,but a number of them___ absent for different reasons.
A.were;was B.was;was
C.was;were D.were;were
2.When and where to build the
new factory ____ yet.
A.has not decided
B.is not decided
C.are not decided
D.have not decided
1.The number of people invited___ fifty,but a number of them___ absent for different reasons.
A.were;was B.was;was
C.was;were D.were;were
2.When and where to build the
new factory ____ yet.
A.has not decided
B.is not decided
C.are not decided
D.have not decided
问题解答：
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