I am doubtful----he is still alivea.that b.whether c.what d.when如果光要答案的话我书后面就有。

I am doubtful----he is still alivea.that b.whether c.what d.when如果光要答案的话我书后面就有。 I am doubtful ___he is still alive.A.whether B.that 该选哪一个啊?根据什么? 请翻译:He felt doubtful about getting around the city. 英语翻译 it is doubtful whether he knows it or not. OK .I am sure he will come i am sure he---- (be) happy soon He think I am good-looking.是什么意思 可以说I am taller than he I am quieter than he is对吗 He sings better than I am改错 Either he or I am wrong. I am you are,she he is I’m doubtful if he will agree to this.这个句子是何从句?如果说是宾语从句的话,if he will agree to this 做谁的宾语呢? 是I am taller than he还是I am taller than him或I am taller than he is? I am as tall as he.I am as tall as he is.哪句对? He is tired .And I am tired,too改为同义句.He is ()()() I am “I am the first,” he said (happy).“I am the first，” he said (happy). i jump higher than he.i am taller than he i am as tall as he 以上句子是否正确