A small number of students ____still waiting ____there.A.is ;/ B.are;/ C.is;for D.are;for

问题描述:

A small number of students ____still waiting ____there.A.is ;/ B.are;/ C.is;for D.are;for

B
a number of 作主语时谓语动词用单数,排除A与C; 而THERE 是副词,前面不用介词,再排D
加油!不明白再问!