Make sentences. 1)left/has/train/already/the 2)just/tom/cooked/lunch/has 3)written/sharon/letter/yet/the/has 4)told/the/they/have/about/me/party/yet/not

Has the train  already left?
Tom has just cooked  lunch
Has Sharon  written the letter  yet?
They have not told me about the party yet.