Which words go in the following sentences.

Young Charles was born in 1902 and was growing/grew up on a farm.

Later, although he has studied/had studied engineering in college, he was more interested in flying planes.

. . . and grew up on . . .

he had studied

What about these?

In 1919 he learned/is learning about a contest in which he could win $25,000.

People in Paris had been waiting/will have been waiting for him for hours, and they met his plane with a huge celebration.

I'll be glad to check your answers.

I think he learned and had been waiting.

In the first sentence, the correct words to use are "was growing up" and "grew up."

To determine the correct verb tense, you need to consider the context and timeline of events.

Since the sentence starts with "Young Charles was born in 1902," we can assume that the sentence is describing Charles in the past. Therefore, we can eliminate the present tense option ("is growing up") and focus on the past tense options.

The phrase "and was growing up on a farm" suggests a continuous action in the past, indicating that Charles was in the process of growing up when he was on the farm. Thus, we use the past continuous tense and say, "Young Charles was growing up on a farm."

The second part of the sentence, "and grew up on a farm," indicates that Charles completed the process of growing up on the farm in the past. Thus, we use the simple past tense and say, "Young Charles grew up on a farm."

In the second sentence, the correct words to use are "had studied" and "was more interested."

To determine the correct verb tense, you need to consider the sequence of events.

The sentence starts with "Later," indicating that this event takes place after the previous sentence. Since we are talking about a past event that occurred after Charles finished college, we use the past perfect tense to describe an action that happened before another past event. Thus, we say, "although he had studied engineering in college."

Lastly, the sentence mentions Charles' interest in flying planes, which is a continuous or ongoing interest, not limited to a specific past event. Therefore, we use the simple past tense and say, "he was more interested in flying planes."