连词成句。(只写序号)
1. ①this ②What’s
____________________________?
2. ①Is ②it ③duck ④a
____________________________?
3. ①a ②It’s ③chicken
____________________________.
4. ①No ②isn’t ③it ④,
____________________________.
5. ①Yes ②it ③is ④,
___________________________.