It's odd (that) he didn't mention it here.
ここで彼がそれに言及しなかったのはおかしい
It's odd that the door is closed.
ドアが閉まっているのは妙だ
It's of no consideration at all.
まったく取るに足らないことだ
It's OK for him to come.
彼が来るのはかまわない
It's one week to Christmas.
クリスマスまであと１週間だ
It's only (right and) proper that ....
…が正しい，正当である
It's only a few minutes' run.
走っていけばわずか２，３分の所です
It's only a joke.
ただの冗談だ
It's only right that he (should) know the fact.
彼がその事実を知っていて当然だ
It's only right [fair].
どう見ても正しい［公平だ］
