【C15】A．ifB．althoughC．whereasD．besides

【25】A．soB．whateverC．whereasD．however

【24】A．providedB．sinceC．whereasD．though

【24】A．IfB．AlthoughC．WhereasD．Because

请在第__（53）__处填上正确答案。 查看材料A.IfB.AlthoughC.B

【C15】A．ThereforeB．AlthoughC．ConsequentlyD．On the other hand

______it is long after dark, he is still wearing black sunglasses.A．IfB．AlthoughC．UnlessD．