问题描述:
"all __present and all__going on well,"our mother said
all __present and all__going on well,"our mother
A are are
b are is
疑问《为啥第2个要用单数形式?》
all __present and all__going on well,"our mother
A are are
b are is
疑问《为啥第2个要用单数形式?》
问题解答:
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