I like James He is quick on the You only have to tell that guy-09648

I like James. He is quick on the __________ You only have to tell that guy how to do something once. He understands the importance of something and how it works very quickly, Jack said to his assistant

This multiple choice question (MCQ) is related to the book/course vu eng101 English Comprehension. It can also be found in vu eng101 Final Term - Quiz No.11.