THE POST OFFICEA. PHONETICSI. CIRCLE THE WORD WHOSE UNDERLINED PART I...

31) The Post Office ____.

A. has never used helicopters in delivery D. makes no contribution to build roads

B. contributes income to build highways, railroads, and airways

C. has never been the first to use a new means of transportation

D. WRITING * Choose the underlined part among A, B, C or D that needs correcting.