Reading hands in a poker game

A hand arises in a £20-£40 hold’em game which is perfect example of how to put someone on a hand. This was one time when a good card reader should be able to know for sure exactly what this particular player had. Let's see if you can think doing the same.
Let's call the player Dave who is a reasonable player in a typical tough game. He was in about seventh position. The blinds were £10 and £20 in front of the button. Three players “limped” in an earlier position for £20 and Dave raised to £40. The player on the button called the £40 and the other “limpers” called the £20 raise. Now there are only five players in the pot for £40 each plus £30 in the blinds.

The flop game:

The first three players read their hands, Dave checked and the player on the button bet £20. One player called in front of Dave and Dave also called. Now there was a £290 in the pot. The card on fourth street was 9 ? . The first player bet out £40 and Dave called once again. In this spot, you can be sure what Dave has! Can you figure it out?
Let us consider Dave's play. Before the flop, his raise indicated a good but not necessarily a great hand as he is in the good position. He might have a pair but he could also have something like 10 or 9 suited.
Dave's check on the flop is very not likely to be slow play with a good hand since the pot is so big to give everybody a free draw. Again, he would have checked a fairly good hand such as pair of aces or even a pair of queens. Hence he wouldn't have much.

After checking on the flop, however, he calls when the button bets. There are only two possibilities: An inside straight draw or (less likely) a pair in the hole. He is getting 14 ½-to-1 odds in this case, which would make a “gut-shot” straight draw (KJ, KT or JT) worth it. A pair is more doubtful. The final clue comes when he calls the £40 bet (with the possible raise behind him) after the hits. His odds has reduced to 8 ¼-to-1 (£330 - £40). It is no longer worth drawing to an inside straight or a pair. If the 9 ? Has made him three 9s he would have raised. So what's the solution? There is one hand that he could have that is no longer a gut-shot draw. It is jack, 10. The 9 ? Would turn the hand into an open end straight draw which is below an 8-to-1 shot, Jack, 10 was the Dave's hand.