.A 78-year-old retired engineer has built a capsule hotel for Beijing’s “ant tribe”. Among the 6 volunteers to try out the apartments on April 3 Sun Changyun, a college student from Shenyang.
A. were
B. are
C. was
D. is
网友回答
A. were
B. are
(答案→)C. was
D. is
解析：可联系答.案.网客服索取。