The company(employ)----more than 50 IT engineers since last year.括号内用什么形式
问题描述：
The company(employ)----more than 50 IT engineers since last year.括号内用什么形式
答
The company(has employed) more than 50 IT engineers since last year.
自从去年以来,这个公司已经雇佣了50多名IT工程师.
根据时间状语since……,应该用现在完成时态,表示从过去延续至今.