You must__what you are doing is quite illegal.A;be aware of B;be aware that怎么选呀?为啥?
问题描述：
You must__what you are doing is quite illegal.A;be aware of B;be aware that怎么选呀?为啥?
答
我觉得选b,这句话的意思是你应该意识到你正在做的事情是违法的 .“what you are doing is quite illegal”是个句子,而that后面可以加从句,of后面一般上加名词.