a an |
A.Yes, it is. | B.Yes, it isn’t. |
A.orange | B.lemon | C.market |
A.classroom | B.apple | C.pear |
A.yes | B.no | C.apple |
A.a | B.this | C.an |
A.an; No, it isn’t. | B.a; Yes, it is. | C.an; No, it is |
A.banana | B.bananas | C.pears |
A.a orange | B.an orange | C.orange |
A.这是你的铅笔吗? | B.这是一支铅笔。 |
A.Am | B.Can | C.Are |