【25】A．soB．whateverC．whereasD．however

【C12】A．whenB．whateverC．whereD．how

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

【24】A．IfB．AlthoughC．WhereasD．Because

___________ 查看材料A.otherB.whateverC.theseD.useful

【C9】A．AsB．LikewiseC．WhereasD．Hence

【C5】A．WheneverB．WhateverC．WhicheverD．Whoever