1．They make________a rule not to watch TV during the meal.
A．one B．it
C．its D．that
解析： 句意为：他们规定吃饭时不准看电视。it为形式宾语，真正宾语为not to watch TV during the meal。
答案： B
2．Little Jack got an A in the exam，and he worked harder and harder________.
A．for the moment B．at that moment
C．from that moment on D．the moment
解析： 由句意可知，小杰克从那时起学习越来越努力了，故选C。A项表示暂时，B项表示在那时；D项不作状语。
答案： C
