她把钥匙扔进了信箱里。

She had ___thrown the keys into the mailbox.

突如其来的坏消息让他陷入了绝望。

The sudden bad news ___threw him into despair.

他们每年都会举办一场盛大的周年庆典。

They ___throw a big anniversary celebration every year.

他朝舞台方向投去一个赞许的目光。

He ___threw an approving glance toward the stage.