2018年解放军士兵考军校-英语 120

 {00}Tianjin is located ________ the south of Beijing．You can get there ________ an hour by train． 

A.in
B.in
C.on
D.within
E.on
F.by
G.in
H. after
解析：
本题选B。

{00}______ you make a promise, you should keep ______.
A.Once… it
B.If… it
C.When … one
D.Although … one
解析：
本题选A。