A.Good morning. | B.Goodbye, Bobby. | C.Hello, Bobby. |
A.on | B.in | C.at |
A.Good morning | B.Goodbye |
A.Yes, I'm not. | B.Yes, I am. |
A.Are, am | B.Is, am | C.Are, is |
A.Yes, I am | B.No, I’m not | C.No, I am |
A.What's this? | B.What's that? |
A.Are, are | B.Are, am. | C.are, am |
A.Yes, I am | B.Hi, I’m Liu Tao | C.Hi, Liu Tao |