join the two sentences using verb-ed forms or verb-ed phrases
1.Heat ice to a certain temperature.It will become water.
When _____________,ice will become water.
2.The doctors successfully completed the operation.They were helped by some experts from the USA.
The doctors successfully completed the operation,____________some experts from the USA.
3.The teacher encouraged Tom.Tom did well in his exam.
_______________the teacher ,Tom did well in his exam.
4.The football match was postponed due to bad weather.The students were disappointed.
The students were______________that the football match was postponed due to bad weather.