Chủ đề:
What are they doing ?Câu hỏi:
There is ONE mistake in each sentence, try to find the mistake and correct it (Có MỘT lỗi sai trong mỗi câu, hãy tìm ra lỗi sai và sửa nó)
1.My sister don't have a house
2.We walk in the mountains at the monent
3.It's often cold in the summer
4.How much oranges do you want.