. Statistics ________ that most of the published and quoted scientific articles are related to medical science.
| A．has shown | B．is shown | C．show | D．shows |
--- Shall we go out for a walk?
--- Sorry. This is not the right ____ to invite me. I am too tired to walk.
| A．moment | B．situation | C．place | D．chance |
What a pity! Considering his ability and experience, he ____ better.
| A．need have done | B．must have done |
| C．can have done | D．might have done |
I _____ it as a basic principle of the company that suppliers of raw materials should be given a fair price for their products.
| A．make | B．look | C．take | D．think |
I hear they’ve promoted Tom, but he didn’t mention _____ when we talked on the phone.
| A．to promote | B．having been promoted |
| C．having promoted | D．to be promoted |
Isn’t it amazing how the human body heals ____ after an injury?
| A．himself | B．him | C．itself | D．it |