问题
选择题
Upon reading the notice all the staff of the company stood there , looking at each other.
A．no speaking
B．speechlessly
C．speechless;
D．did not speaking
答案
答案：C
speechlessly（adv）不是修饰动词stood 的，而是 speechless（adj）用来修饰主语all the staff of the company，即形容词做主补,所以选 C。