(2015•江苏) The number of smokers, ___________ is reported, has dropped by 17 percent in just one year.
A. it B. which
C. what D. as
（2015·浙江）Creating an atmosphere ________employees feel part of a team is a big challenge.
A. as B. whose
C. in which D. at which
（题文）（2016 • 江苏卷）Many young people, most _________were well-educated, headed for remote regions to chase their dreams.
A. of which B. of them
C. of whom D. of those
We will put off the picnic in the park until next week, ____ the weather may be better.
A. that B. where
C. which D. when
My eldest son, _______ the work takes him all over the world, is in New York at the moment.
A. of whom B. whose
C. of whose D. of which
In 1963 the UN set up the World Food Program, one of ________ purposes is to relieve worldwide starvation.
A. which B. it’s
C. whose D. whom
