UC知道a pen and a pencil on the bed
来源：百度知道 编辑：UC知道 时间：2024/05/12 01:42:46
be动词用are还是is
都是单数
都是单数
虽然两个都是单数，两个单数用and连接，就是复数了，用are
are
主体是a pen & a pencil， 所有用are
用are,因为是个肯定句，如果连词是or的话，就用is了。
当然用are了，两个单数在一起有and话就是复数，如果是or的话就是单数
This is a pencil and a pen还是This are a pencil and a pen,
There is a pen and a pencil 还是There are a pen and a pencil
a pen and a pencil on the bed
是不是There is a pen and a pencil但是是These are a pen and a pencil?
On my desk ____ a pen and two pens
There ( ) a pen and ( ) pencils ( )on the desk.
Here are a pen and two books for you改错
a letter for pen pal
Have you got a pen?
I want a pen pal