Past simple / Present perfect

Select the correct verb form to complete the sentence:

“I ___ (work) as a project manager for over five years, which has equipped me with strong organizational skills.”

• worked

• have worked

• work

• am working

Select the correct verb form to complete the sentence:

“During my last role, I ___ (lead) a team of 15 people to successfully complete a project.”

• lead

• have led

• led

• was leading

Select the correct verb form to complete the sentence:

“In my current role, I ___ (oversee) a team of 20 people on various high-priority projects.”

• have overseen

• oversaw

• oversee

• am overseeing

Select the correct verb form to complete the sentence:

“Since joining my current company, I ___ (improve) our client satisfaction rate by 20%.”

• improved

• have improved

• was improving

• improve

Select the correct verb form to complete the sentence:

“I ___ (finish) my degree in Business Management in 2018.”

• finished

• have finished

• was finishing

• finish

Select the correct verb form to complete the sentence:

“In my previous job, I ___ (achieve) recognition for my leadership skills.”

• achieve

• have achieved

• am achieving

• achieved

Select the correct verb form to complete the sentence:

“I ___ (develop) excellent problem-solving skills throughout my career.”

• have developed

• developed

• develop

• was developing

Select the correct verb form to complete the sentence:

“So far, I ___ (apply) my skills in various successful projects.”

• apply

• am applying

• applied

• have applied

Select the correct verb form to complete the sentence:

“This year, I ___ (work) closely with several international clients to improve our services.”

• worked

• have worked

• am working

• work

Explain why the sentence "I have led several high-impact projects" might be more effective in a cover letter than "I led several high-impact projects." Consider the tone and implied meaning in your response.