---- Mr. Smith is said to have retired and he is living in the country now.
---- Yes. He ________ in our factory for 35 years! What a good worker!
A. had been working B. had worked C. worked D. have worked
----Did you hear about the hero who rescued the child from the burning building?
----Yes. What do you think most people ______ if they were in a similar situation?
A. will do B will have done. C. would do D. would have done
What is concerning us greatly is ____ the workers held up in that area yesterday will be set free.
A. that B. what C. when D. which
Even if there is no scientific proof secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk.
A. which B. that C. when D. where
Great inventors don’t ________ graduate from famous universities. Some didn’t even go to university.
A. likely B. necessarily C. really D. particularly
Being constantly exposed to advertisements is annoying, but it ______ be pleasant sometimes.
A. shall B. need C. can D. must
