Đáp án:

2. Pencil ` -> ` Pencils.

There are pencils.

3. Pencil case ` -> ` Pencil case.

Those are pencil cases.

4. Pencil sharpener ` -> ` Pencil sharpeners.

There are pencil sharpeners.

5. Book ` -> ` Books.

Those are books.

6. Notebook ` -> ` Notebooks.

These are notebooks.

7. Ruler ` -> ` Rulers.

Those are rulers.

8. Rubber ` -> ` Rubbers. 

There are rubbers.

Giải thích: Those / there + are + Ns + O 

` #AkiSha2007 `

2. There are pencils

3.Those are pencil cases

4.These are pencil sharpeners

5.Those are books

6.There are notebooks

7.Those are rulers

8.There are rubbers

Sau those,there ta dùng từ are.Sau từ are thì ta thêm s sau danh từ