我经常忘记关灯就出门。

I often ___forget to turn off the lights when I leave.

她决定忘记那次不愉快的争吵，重新开始。

She decided to ___forget that unpleasant argument and start anew.

我经常把钥匙忘在办公室。

I often ___forget my keys at the office.

我忘记带钥匙了。

I ___forgot to bring my keys.