this后面为什么加is,不加are或am
this后面为什么加is,不加are或am
is am are 后面加什么词
请问is,am,are后面该加什么词?(比如IS后加名词或形容词之类的)
i am taller than she is后面为什么加is
this is 后加"a pen "还是"pen ",为什么"this is paper"可以不加?"these are
neither nor 或 either or 后面加is?还是are?
i am very older than you are .为什么这里还要加are?不加可以吗
the student from China后面加Is?还是are?为什么
Are you free tomorrow为什么不加this
she is English后面为什么不加does?
为什么I后面要加am?
am is are这三个借词的后面的动词要加ing形式吗?