公路由哪些部分构成?
参考答案:
公路包括公路的路基、路面、涵洞、公路桥梁、公路隧道和公路渡口。
Don’t worry. You can _____he ‘ll turn up on time. He always keeps his promises.
A.depend on
B.depend on it that
C.depend on that
D.depend upon