A.a | B.an | C./ |
A.your; your | B.your; my | C.my; my |
A.a crayon | B.a pen | C.a bag |
Here are four pencils. They are red, yellow, green and blue. They are John's, Mike's, Chen Jie's and Lucy's. John's pencil is not yellow, green or red. Mike's pencil is not green. And Lucy's pencil is not yellow or green.
A. —Open the schoolbag, David. —OK. B. —What’s this? —It’s a ruler. C. —Is that a ruler? —No, it’s a rubber. D. —Is this a pencil case? —Yes, it is. E. —Where’s your crayon? —It’s over there. |
A.Is this | B.Are those | C.It is |
A.this | B.that | C.those |