句子:1.This is a pen。(变复数)
2.That is his sister。(变复数)
3.Are these ruler。(变单数)
4.Are those your friends。(变单数)单词:ruler book bus brother dictionary photo watch name eraser pencil
句子:1.This is a pen。(变复数)
2.That is his sister。(变复数)
3.Are these ruler。(变单数)
4.Are those your friends。(变单数)单词:ruler book bus brother dictionary photo watch name eraser pencil
句子:1.These are pens。
2.Those are his sisters。
3.Is this a ruler。
4.Is this your friend。
单词:rulers books buses brothers dictionaries photos watches names erasers pencils
These are pens.
Those are his sisters.
Is this a ruler.
Is that your friend?
rulers books brothers dictionaries photoes watches names erasers