根据下面对话中的情景，在空白处填入适当的单词，使对话内容完整
A: Hello, Tim! What's this in English?
B: It is a (1)__________.
A: (2)__________ do you spell it?
B: D-I-C-T-I-O-N-A-R-Y.
A: Yes, it (3)__________.
B: Oh, is that your watch?
A: No, it isn't. It's (4)__________ watch. My watch is blue.
B: Is that baseball Linda's, too?
A: No, it isn't. The (5)__________ is Helen's.