A number of people in our city__the old A are worried about B care for 为什么A错

I konw a number of occasions when people died from water pollution为什么用when? number of people是什么意思 there the small number of people there()a small number of people a number of people 和that number of people 是一样的吗 What's __________ people in Australia?A. the number of B. a number of C. number D. the population of The number of people invited___ fifty ,but a number of them ___absent for different reason. There are a number of more and more people.为什么? There____(be) a number of people over there just now. A ______ (grow) number of people are going vegetarians A large number of people in the word eat fast The number of people invited was fifty,but a number of them were absent for different reasons.the number of和a number of 是a gerat deal of people还是a large number of people 英语翻译求翻译:Never shall i forget the day when i first made a speech before a large number of people. __of people who have lost jobs__day by day,and__of them have found jobs again.A.A number of; grows ;a number B.the number;reduces;a number 定语从句题目I know of a number of occasions --------people died from water pollution划线处填when,整句话怎么理解呢? when I got there,I found a number of people (to be)already working there.这里括号里的to be 是否可有可无? the number of,a small number of,a number of. The number of people which lost homes reached as many as 2500.这个句子是否正the number of意为“……的数目”；a number of 意为“许多”（＝many）、“若干”.例如：I want to know the number of the motor-vehicles.我想