Is this a map?- Yes, .A. it isB. that isC. this isD. they are

网友回答

(答案→)A. it is
B. that is
C. this is
D. they are
解析：此题考查固定句型结构is this…？其答语只能用yes，it is；否定性回答只能用no，it isn’t。故选A。