Final answer:
Prepositions such as 'on,' 'for,' 'with,' 'in,' and 'at' are used to convey various relationships between words in sentences. They are integral to providing clarity and direction in a sentence, assigning roles such as location, recipient, agent, and time.
Step-by-step explanation:
The student has asked how to fill in the prepositions in various sentences. Here are the correct prepositions filled in:
- Our robot surgeon is going to operate on him.
- Tony's waiting for you in the office.
- Gary has achieved a lot of success in his career.
- The boss is very satisfied with Fran's work on the project.
- There are lots of applicants who are suitable for the job.
- The robot cleaner is hard at work in the kitchen.
- We can count on Ryan to do a good job.
These sentences use common English prepositions to link nouns, pronouns, or phrases to other words within a sentence to show their relationship with each other.