填入适当的词补全对话，每空一词。

A: Oh, you speak good English. How have you been studying it?

B: For three years. I like English very much.

A: Do you think it's difficult to learn?

B: I think so, but sometimes I am not quite sure about the grammar.

A: Pronunciation and spelling are not problems for me.

B: Yes, I feel the . But if you speak more and read more, you will find it's not so hard. By the way, there will be an English party at our school this evening. Do you want to go?

A: Yes, I'd love to. should we meet? Six o'clock?

B: Six o'clock is too . Let's meet half an hour later.

A: OK. See you then.