Sure, here are the explanations for the answers:

**Question 49.** You can make ___ by starting up your own business.
- **Correct Answer: A. headway**
- *Explanation:* "Headway" means progress, which fits with starting up a business.

**Question 50.** To be successful in a highly technical job, you need to be very ___.
- **Correct Answer: A. skillful**
- *Explanation:* Being skillful is necessary for success in technical jobs.

**Question 51.** What kind of career ___ do you think is most suitable for you when you’ve just graduated from college?
- **Correct Answer: C. path**
- *Explanation:* "Career path" refers to the direction your career takes.

**Question 52.** Many people seek ___ to advance in their careers and learn new skills.
- **Correct Answer: D. training**
- *Explanation:* "Training" helps people advance and learn new skills.

**Question 53.** After finishing her education, she had to ___ by working in a variety of jobs to support herself.
- **Correct Answer: D. earn a living**
- *Explanation:* "Earn a living" means to make enough money for living expenses.

**Question 54.** ___ tasks in a job can sometimes become monotonous and uninteresting.
- **Correct Answer: B. Repetitive**
- *Explanation:* Repetitive tasks can feel monotonous and boring.