一、单句填空：用括号中所给动词的适当形式填空。1. _ (walk) is a good form of exercise for both young and old. (全国)2. Eugenes never willing to alter any of his opinions. Its no use _(argue) with him. (上海)3. Please remain _(seat); the winner of the prize will be announced soon. (辽宁)4. Can I smoke here? Sorry. We dont allow _(smoke) here. (江苏)5. It is difficult to imagine his _(accept) the decision without any consideration. (陕西)6. I cant stand _
