Chọn phương án đúng.
Câu 1. What’s this? - It’s a .............. .
Câu 2. What are these? - They are .............. .
Câu 3. Twenty, thirty, ..........., fifty, sixty.
Câu 4. Na: How many......... are there in your bag, Ha? Ha: There are five.
Câu 5. Father, mother, sister, .............., me.
Câu 6. My, your, his, their,..................
Câu 7. Twelve + seven = ..................
Câu 8. Lan: Is that a board? Ba: No, it ................. It’s a table.
Câu 9. How many boards are there? - There ............. one.
Câu 10. What is that? - .................... is a door.
