Combine the sentences below to create a complex sentence.
My science class continued on its way to the abandoned gold mine. An unexpected thunderstorm began.
O
An unexpected thunderstorm began, yet my science class continued on its way to the abandoned gold mine
O
My science class continued to the abandoned gold mine as a thunderstorm, which was unexpected, began.
O
My science class continued on its way to the abandoned gold mine; meanwhile, an unexpected thunderstorm began
O My science class continued on its way to the abandoned gold mine even though an unexpected thunderstorm began.