从右栏中选出左栏中各句的最佳应答语。

①Hello，is that Jenny speaking?             A. Let's make it half past ten in the park.

②When and where shall we meet?          B. Good idea.

③I'm sure I won't lose the game.            C. No. She isn't in.

④Shall we be in the girls'relay race?        D. The girls' 400-meter race.

⑤Which sport will you take part in?         E. I hope so.