题目内容
——Tomorrow ____ my birthday. I’d like you and Jane to come.
——I’m not sure if she ____ free.
——I’m not sure if she ____ free.
| A.will be; is | B.is going to; is | C.is; is | D.is; will be |
D
第一空是表示“不以人的意志为转移的客观事实”,用一般现在时;第二空是表示“将来的动作”,用一般将来时。
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