Question

Which of the following sentences is a complex sentence?

a) Alex looked for Martha and Samuel at the train station, but they had already gone.
b) Martha and Samuel arrived at the train station before noon, and then they waited for Alex.
c) Martha and Samuel left on an early train, so Alex did not see them at the station.
d) After they left on the train, Martha and Samuel realized that Alex must have gone to the bus station.

Answer 1

The complex sentence is option c) Martha and Samuel left on an early train, so Alex did not see them at the station.

Step-by-step explanation:

The sentence that is a complex sentence is option c) Martha and Samuel left on an early train, so Alex did not see them at the station.

In this sentence, there are two clauses connected by the subordinating conjunction 'so.' The main clause is 'Martha and Samuel left on an early train' and the subordinate clause is 'Alex did not see them at the station.'

This sentence is complex because it contains both an independent clause and a dependent clause, with the dependent clause providing additional information about the main clause.