Question

Complete the sentences by adding the appropriate preposition.

1. The farmer cleans his horse ________ (by the beginning of the competition).
2. The medicine works wonders ________ (by our travel).
3. Betty drinks her milk ________ (by mother's humming).
4. We pack our things ________ (by arriving of the taxi).
5. The world's population increases ________ (by the end of the century).
6. I have a bath ________ (by three o'clock).
7. The plant fulfills its production plan ________ (by the end of the year).

Answer 1

The sentences have been completed with the proper prepositions to ensure grammatical correctness. 'By' is used in most cases to indicate a deadline or end point, while 'to' is used once to indicate accompaniment.

Step-by-step explanation:

The exercise involves choosing the correct prepositions to complete sentences. Here are the completed sentences with the appropriate prepositions:

1. The farmer cleans his horse by the beginning of the competition.
2. The medicine works wonders by our travel.
3. Betty drinks her milk to mother's humming.
4. We pack our things by the arriving of the taxi.
5. The world's population increases by the end of the century.
6. I have a bath by three o'clock.
7. The plant fulfills its production plan by the end of the year.

The chosen prepositions fit the context of each sentence and make them grammatically correct and complete.