他是唯一知道密码的人。

He is the ___only one who knows the password.

这个优惠券仅限周五使用。

This coupon is valid ___only on Fridays.

她仅仅学了三个月就已经能流利地说法语了。

She's ___only been studying for three months and can already speak French fluently.

她刚刚完成作业。

She finished her homework ___only a minute ago.

这不过是场小比赛，别太紧张。

It's ___only a small game, don't stress too much.