选词填空

A. approach                 B. serve                 C. rate                  D. spot                 E. dedicate

【小题1】During the pandemic, it can be hard for even a trained doctor to ____________ the symptoms of such infection.
【小题2】The data show that the vaccine offers strong protection for all the age group, with a 90.7 percent effectiveness ____________ in preventing symptomatic disease.
【小题3】Reframing stressful tasks as learning possibilities shifts your mindset and better prepares you to ____________ the task with an orientation toward growth and longer-term gains.
【小题4】While working as a lecturer at the University of Toronto in the 1980s, he began to ____________ himself seriously to a long-standing passion, writing.