we are goingto take a ____ to shanghai Zoo A.No.96 bus B.a N

we are goingto take a ____ to shanghai Zoo A.No.96 bus B.a No.966 bus C.a No.96th bus D.a bus 96 不
完整解析.答得完整,我知道正确答案.但不知道为什么.
不好意思，we are goingto take ____ to shanghai Zoo
还有一题：Both---- Great Wall and ----Beihai Park are interesting places in Beijing
A the；the B the ；不填 C不填；；the D 不填；不填