this is a apple
this is a apple改错
this is a (apple)
this is a apple和here's a apple区别
this is a apple和this is apple有什么区别
This is ________(apple)
This red apple is big.It is _big apple.a.an b.a c.\
【 】This is green apple _______ is green apple 中有错 A B C
This is a red apple.对画线部分a red apple 提问
These are an apple and a pear.还是This is an apple and a pear.
This is not only a apple but also red.
this is a red apple改为一般疑问句
This is an apple,that's a knife