16. Tom’s family ____ wondering whether there ____ anything that they can do.
A. are/ are B. is/ is C. are/ is D. is/ are
17. The couple ____ in Denver but ____ to Houston for the winters.
A. lives/ go B. lives/ goes C. live/ go D. live/ goes
18. The committee ____ adamant that ____ recommendations be adopted.
A. is/ their B. are/ their C. is/ its D. are/ its
19. Each nation ____ its own culture, and our nation has ____ own culture, too.
A. has/ its B. have/ our C. have/ its D. has/ their