案:a
2.i wonder how he ________that to the teacher.
a.dare to say b.dare saying
c.not dare say d.dared say
解析:dare作情态动词时通用于所有人称,后接动词原形;作实义动词时,其过去式为dared,后接不定式,to有时可省略。故选d。
答案:d
3.john promised his doctor he ________not smoke and he has never smoked ever since.
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