An effective way to combine both sentences is introducing a relative clause:
In 1961, Congress passed a resolution which recognized Samuel Wilson as the original Uncle Sam.
A relative clause relates a main clause “In 1961, Congress passed a resolution” with a dependant clause “recognized Samuel Wilson as the original Uncle Sam.” The aim is to avoid repetition, connect ideas and make the text flow.
I got you the answer is………………
Answer:
Half of the food that we are serving the guests are still in the refrigerator .
True this is used to combine them so that they make sense and give a fuller meaning/description to it