Paul____be in the school now, for I saw him looking after his father
In the hospital just now
A can not B must not C need not D may not
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 |
My neighbor asked me to go for _____ walk, but I don’t think I’ve got ____ energy.
| A．the; the | B． a; / | C．/; the | D．a; the |