Slovakia upset rivals Czech Republic, while Poland hit San Marino for ten in Group Three.
Slovakia boosted their qualification hopes with a memorable 2-1 victory over neighbours Czech Republic in Prague.
The visitors broke the deadlock on 23 minutes courtesy of Stanislav Sestak's effort.
Czech Republic drew level on the half-hour mark when Zdenek Grygera's strike took a deflection off Martin Skrtel to go into the net.
Erik Jendrisek grabbed the winner for Slovakia seven minutes from time to move them four points clear of the Czechs.
Poland bounced back from their defeat by Northern Ireland with a thumping 10-0 win over minnows San Marino to move into third spot in the group.
Bolton forward Ebi Smolarek helped himself to four goals as the Poles ran riot in Kielce.
Rafal Boguski set Poland on their way with the opener in the first minute before Smolarek netted his first of the contest on 18 minutes.
Boguski netted his second and Poland's third on 27 minutes before strikes from Robert Lewandowski (43) and Ireneusz Jelen (51) made it 5-0.
Smolarek grabbed his second on the hour with Mariusz Lewandowski getting in on the act three minutes later before Smolarek completed his hat-trick on 73 minutes.
Things got worse for San Marino when Smolarek notched his fourth nine minutes from time and Southampton forward Marek Saganowski made it 10-0 two minutes from time.