Question

【题目】— I heard that there were few trees on the mountain behind your village.— It used to be. But ________ trees were planted last month.

A.the number of
B.a number of
C.number of

Answer 1

【答案】B
【解析】句意：---我听说在你们村后面的山上几乎没有树木。---过去是的。但是上个月种了很多树。the number of……的数量；a number of许多……。根据句意，所以答案是B。