which is a complex sentence?\no they will not defeat their enemy until they come up with a better…
which is a complex sentence?\no they will not defeat their enemy until they come up with a better strategy.\no the castle is a fortress, but it does have some weaknesses.\no with its calm surface, the moat looked harmless, but it had hidden dangers.\no watchful archers hid in the towers, and the soldiers stood ready below.
Answer
Brief Explanations:
A complex sentence has one independent clause and at least one dependent clause. "They will not defeat their enemy until they come up with a better strategy" has the independent clause "They will not defeat their enemy" and the dependent clause "until they come up with a better strategy". The other sentences are compound sentences (with coordinating conjunctions "but" or "and") which have two or more independent clauses.
Answer:
They will not defeat their enemy until they come up with a better strategy.