问题:
_______ the end of last spring Wang Hai joined the army _______ the end.
A.At/at
B.By/in
C.In /at
D.At /in
_______ the end of last spring Wang Hai joined the army _______ the end.
A.At/at
B.By/in
C.In /at
D.At /in
A.At/at
B.By/in
C.In /at
D.At /in
参考答案: