是where is a set of keys 还是where are 回答是It‘s 还是They're是Is this a set of keys 还是 Are they a set of keys

问题描述:

是where is a set of keys 还是where are 回答是It‘s 还是They're
是Is this a set of keys 还是 Are they a set of keys

is this a set of keys 回答用it's

is
It's
Is

where is a set of keys /where are a set of keys 好像都有问题.
a set of keys 一串钥匙,是作为一件物品,用is不用are.
where is a set of keys 语法上是通的.但是实际上没人会这么问.原句的意思应是:“那串钥匙呢?”正确说法是:“where is the set of keys ?”
Is this a set of keys 对

Is this a set of keys