Bev Jenkins, from Estyn, says children are making progress in Welsh language development in the majority of English-medium schools, but more needs to be done to improve Welsh reading and writing skills.
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The heavy showers will ease during the first part of tonight, leaving a dry night with mist in places.
A 1950s pin-up girl from the Vale of Glamorgan has returned to the spot where she won the nation's hearts.
The band play the Liberty Stadium on Saturday night as part of their 'Everything Must Go' 20th anniversary tour.