The museum is quite far. It will take you half _____ hour to go there by _____ bus.
A.an; / B.an; a C.a; / D./; /正确答案A
The museum is quite far. It will take you half _____ hour to go there by _____ bus.
A.an; / B.an; a C.a; / D./; /正确答案A
