阅读下面短文，从短文后所给的[A]、[B]、[C]三个选项中选出能填入相应空白处的最佳选项。

it wAs ClouDy.A、smAll Boy AnD his FAthEr {{u}} (41) {{/u}}A wAlk in thE Country. it suDDEnly BEgAn to rAin hArD、thEy DiDn’t hAvE thEir umBrEllAs {{u}} (42) {{/u}} thEm AnD thErE wAs nowhErE to hiDE From {{u}} (43) {{/u}} rAin, {{u}} (44) {{/u}} thEy wErE soon {{u}} (45) {{/u}}.As thEy wAlking {{u}} (46) {{/u}} through thE rAin, thE Boy {{u}} (47) {{/u}} his FAthEr AnD AskED him, "why DoEs it rAin, FAthEr it isn’t vEry niCE, isn’t it "{{u}} (48) {{/u}} vEry niCE, But it’s usEFul, tom," {{u}} (49) {{/u}} his FAthEr. "it rAins to mAkE thE Fruit AnD thE vEgEtABlE grow For us," tom thought ABout this For A momEnt, AnD thEn hE sAiD, "thEn, why DoEs it rAin on thE roAD {{u}} (50) {{/u}}, FAthEr "

A．

[A] yEs, it is

B．

[B] no, it is

C、

[C] no, it isn’t