Students are not permitted _______ noises at class. A.make B.making C.to make D.made 答案:Csb. be permitted to do sth. “某人被允许做某事”。 题意:学生不允许在班上大吵大闹。 12.直接写出得数.7.4÷0.1=$\frac{7}{5}$+$\frac{8}{5}$=10÷$\frac{5}{7}$=48×25%=$\frac{3}{7}$÷$\frac{1}{2}$=$\frac{2}{3}$×$\frac{1}{6}$=6.4-2.32=15×($\frac{1}{3}$+$\frac{1}{5}$)=