If I free tonight, I'll go to the cinema with you. A. am B. was C. will be D. be
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If I ___ free tonight, I'll go to the cinema with you.
A. am B. was C. will be D. be
试题答案
A
解析:
当主句是将来时时,以if引导的条件状语从句中的谓语,应用一般现在时表示 “将来”.