_____ work has been done to prevent the river being polluted. A .A number of B A mass of C Several D. A good many
The number of people invited _____ fifty, but a number of them _____ absent for different reasons.
It was raining hard at that time. _____, we had to leave as soon as possible.
What he suggested _____ a good suggestion. Let’s put it into practice.
The Great Wall winds its way _____ mountains _____ valleys and _____ deserts to the east.
They did a very good job. More than one student _____ praised by the teacher.