Question

I was lying on my back and could only look upwards. (change into a complex sentence)​

Answer 1

when I was lying on my back , I could only look upwards.

Answer 2

Answer:

Since I was lying on my back I was not able to look upwards.

Explanation:

While changing a simple sentence into a complex sentence, we need to incorporate an independent clause and one dependent clause.

The independent clause can stand alone whereas the dependent clause cannot stand alone though it will have subject and verb, it would not be able to stand alone.  

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