问题
                    
Let’sgoclimbingthemountainsifit ______thisweekend.—Butnobodyknowsifit ______.[ ]
                            A:isfine; willrain
B:willbefine; rains
C:willbefine; willrain
D:isfine; rains
                        
                        B:willbefine; rains
C:willbefine; willrain
D:isfine; rains
正确答案是: