Question

Which of the following sentences is a compound sentence? A. The line was significantly shorter than usual which was a relief. B. Although I was in a hurry, I still wanted to get a hot latte to go. C. Both the burista and the cashier gave me a huge, welcoming smile. D. The coffee shop was unusual full, but today were many open tables.

Answer 1

D. The coffee shop was unusual full, but today were many open tables.

A compound sentence is a sentence that has two complete sentences joined together using a comma and a conjunction. "The coffee shop was unusually full" is a complete sentence by itself. "Today [there] were many open tables" is also a complete sentence by itself. These are joined together with the conjunction "but" preceded by a comma.