题目

Becky often plays ________ violin for an hour every day.A．aB．anC．theD．/ 答案：【答案】C【解析】句意：贝基经常每天拉一个小时的小提琴。考查冠词。西洋乐器类前要加冠词the，play the violin“拉小提琴”，故选C。12．直接写数对又快．8×12.5%=1÷10%=2-2÷3=$\frac{5}{3}$÷$\frac{25}{9}$=$\frac{3}{5}$0.23=35×$\frac{1}{14}$=1÷$\frac{5}{2}$×$\frac{2}{5}$=4×$\frac{1}{16}$=$\frac{1}{4}$．