清晨，云雀在田野上空欢快地歌唱。

In the early morning, ___larks sing joyfully above the fields.

周末我们突发奇想去海边野餐，纯粹是为了好玩。

We went for a spontaneous picnic by the beach last weekend, just for a ___lark.

周末我们喜欢在沙滩上嬉戏打闹。

On weekends we love to ___play around on the beach.