It _____ John and Kate who helped me the other day.A) is B) was C) are D) were
问题描述：
It _____ John and Kate who helped me the other day.
A) is B) was C) are D) were
答
d
答
was
强调句型 it is +强调部分+引导词+其他
答
是B，二楼正解
答
C
形式主语是IT，谓语用单数，因为是过去，所以c
答
选择B
强调句型,不用复数