Evidence obtained from observation and experiment is often used to _____ a scientific theory.
| A．confirm | B．confine | C．conform | D．conceive |
—I wonder what makes you a successful manager.
—I ________ as a waiter for five years，which contributes a lot to my today’s work.
| A．serve | B．have served | C．had served | D．served |
Due to the widespread ________ of this medical technology，more diseases can be discovered and treated at an early stage.
| A．presentation | B．application | C．qualification | D．appreciation |
The book was written ______ careful observations and detailed studies.
| A．on behalf of | B．regardless of | C．on the basis of | D．in relation of |
You had better ______some time every day for sports so that you can keep yourself energetic.
| A．set aside | B．take up | C．put away | D．give out |
Don’t take it seriously, Alice. I wasn’t making ______ fun of you — it’s nothing but ______ joke.
| A．不填; the | B．the; the | C．the; a | D．不填; a |