units 3～4 ⅰ.单项填空 1．at ________good news，she felt confused for ________moment，and then began to burst into laughter. a．the；the b．the；a c．a；the d．a；a 答案 b [第一空是特指，所以填the，第二空for a moment意为“一会儿”。] 2．although the roma couldn't be forced to pay taxes，they couldn't vote ________they agreed to ________to the government. a．unless；submit b．until；correspond c．when；resign d．while；compromise 答案 a [句意：尽管不能强迫罗姆人交税，但是他们也不能投票，
