补全对话。
A: Hello. 1. __________________ .Dad?
B: Me, too.
A: But you look worried. 2. __________________?
B: I got a "C" in the English exam.
A:3. __________________
B: I think English is too difficult for me. I don't understand why we Chinese students have to learn it.
A: You know, 4. __________________.
B: You're right. Though it's very useful, it's too hard.
A: It's hard, but it's important. 5. __________________
B: Really? It's very kind of you. I'll try harder.
1. _________2. _________ 3. _________4. _________5. _________
