管线穿过道路以防重压须埋入地下深度至少()。
A.0.2m
B.0.4m
C.0.6m
D.0.8m
参考答案:C
If English ______ included in the examinations, few students would choose it.
A.weren’t
B.isn’t
C.hasn’t been
D.hadn’t been
Every time ______ I see the picture there, I think of my days in a remote mountain village.
A.when
B.while
C.as
D./