我们很快就会到那里。

We'll be there ___before ___you ___know ___it.

里面有点暗，尤其是在冬天，天很快就黑了。

It is a bit dark inside and especially in winter, it is dark ___before ___you ___know ___it.

周末很快就会到来。

The weekend will arrive ___before ___you ___know ___it.