Paul Collingwood and Kevin Pietersen produced a welcome show of defiance for England as they battled to avoid defeat in the first Ashes Test in Brisbane.
England reached 150-3 at tea on the fourth afternoon with Collingwood 56 not out and Pietersen unbeaten on 25.
They came together when Alastair Cook was caught at short leg for 43, a second victim for spinner Shane Warne.
Australia declared on 202-1 during the morning after Justin Langer reached his 23rd Test century - with a lead of 647.
The day began with the majority of the home fans hoping for an early declaration from Ricky Ponting after the anti-climax of the final session on day three.
He duly obliged after one ball of the sixth over, which Langer dabbed away for a single to bring up a 146-ball hundred.
Ponting's share of an unbroken stand of 134 was 60 not out but worryingly for Australia, he sustained a back problem during the mini-session and was unable to take the field with his players at the start of England's innings.
Lee and McGrath found the cracked pitch unresponsive as they probed for an early breakthrough with the new ball and it looked as if a long attritional struggle lay in store for both sides.
But Strauss (11) paid the price for another injudicious stroke as he hit a rising ball from Clark straight to substitute fielder Ryan Broad. It was the second time in the match that he had succumbed attempting the hook shot.
England could not afford another error of judgment from Strauss
England's first innings was a rarity in that Warne, the most successful bowler in Test history, failed to pick up a single wicket.
He was not to be denied a second time, however, as Ian Bell missed the slider, a front of the hand delivery which goes straight on, and umpire Steve Bucknor adjudged him lbw for nought.
Bell was replaced by Collingwood who looked vulnerable to Clark outside off stump and almost gave a catch to Damien Martyn at short cover.
His problems continued after the interval and had a lucky escape when Clark again found the edge and the ball touched just the turf about half an inch in front of Warne's fingers at first slip.
Collingwood grew in confidence, however, to help an impressively solid Alastair Cook add 55 for the third wicket and even upper-cut a Lee bouncer over the keeper's head for six.
But Warne struck again with a leg-break into the rough bowled from round the wicket which Cook could not counter and Mike Hussey took the chance at short leg.
Cook's dismissal for 43 brought Kevin Pietersen to the middle. Could he rein in his attacking instincts and occupy the crease?
Australia employed some unusual field placings to try and unsettle him, employing two men at short cover, but Pietersen held himself in check as Collingwood advanced towards his half century.
It arrived off 86 balls with an authoritative pull for four off McGrath, who was operating at a slightly reduced pace because of a sore heel.