A.the | B.a | C.an |
A.Thanks! |
B.I don’t know. |
A.I have one pen. |
B.May I have one pen , please ? |
A.Open the door . |
B.Close the door . |
A.Open your book, please . |
B.Close your book ,please . |
A.Happy birthday . |
B.Thank you . |
A.How are you? |
B.Hello! |
A.I am very hot! |
B.I feel tired! |