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

问题补充：

--- Is this a map? --- Yes, .

A. it is

B. that is

C. this is

D. they are

答案：

(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。