1 . 上周Jack参加了跳远比赛，在比赛中战胜了他的对手。(participate，where定语从句) (汉译英)

2 . A whirlpool is a small area in the sea________ the water is moving quickly around and objects floating near it are pulled into its centre. （用适当的词填空）

3 . I’m just waiting for a friend. It’s an a _________ made twenty years ago. There used to be a restaurant _______this store stands. (根据句意填空)

4 . This idiom is often used to talk about situations __________ people fail after wasting three chances. (用适当的词填空)