问题
选择题
—The play is seldom put on here,is it?
—_________.Only once three weeks ago.
A．No,it isn’t
B．Yes,it is
C．Yes,it was
D．No,it is
答案
A
答语中的only once three weeks ago暗示了“这部话剧并不常在这儿上演”，这是对问句的肯定，故应用No,it isn’t（是的，不经常）.C、D两项本身结构有误。