Read these sentences and complete them, using a verb + out. Use the suitable tenses.

1. Steve is very fit. He does a lot of sport and regularly.
2. I phoned the station to what time the train arrived.
3. We thought she was American at first, but she to be Swedish.

1. Steve is very fit. He does a lot of sport and works out regularly.
In this sentence, we need to complete it using a verb + out. Since the sentence already mentions that Steve does a lot of sport, we can assume that he also does some additional physical activity to keep himself fit. The suitable verb to use here is "work". To make it grammatically correct, we need to use the present simple tense, as the sentence suggests that this is a regular or habitual action for Steve. Therefore, we would say "He works out regularly."

2. I phoned the station to find out what time the train arrived.
In this sentence, we need to complete it using a verb + out. The main action here is that the speaker phoned the station. The purpose of the phone call was to get information about the arrival time of the train. So, we need a verb that implies obtaining information. The suitable verb to use here is "find". To make it grammatically correct, we need to use the past simple tense, as the sentence suggests a completed action in the past. Therefore, we would say "I phoned the station to find out what time the train arrived."

3. We thought she was American at first, but she turned out to be Swedish.
In this sentence, we need to complete it using a verb + out. The initial assumption was that the person being referred to is American. However, something happened that revealed her true nationality. The suitable verb to use here is "turn." To make it grammatically correct, we need to use the past simple tense, as the sentence suggests a completed action in the past. Therefore, we would say "We thought she was American at first, but she turned out to be Swedish."

By completing the sentences with the appropriate verbs + out, we make the meaning clear and ensure that the sentences are grammatically correct.