问题描述：
1.Why is Frank taking a bottle of drinking water?A will be B is C was D has been
2.I'll take my umbrella with me in case it A is raining B will rain C is going to rain D rains 最后能说出原因
2.I'll take my umbrella with me in case it A is raining B will rain C is going to rain D rains 最后能说出原因
问题解答：
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