every few years 中,few前为什么不加“a”?
every few years 中,few前为什么不加“a”?
a few years ago前为什么不加介词in
为什么in the last few months 中 few前面不加a
Then the bed waits a few more minutes.该句中为什么more前加了a few呢?
为什么是every few minutes而不是every a few minutes
a few profit 中,a few 修饰的是可数名词复数,为什么profit不加s
a few years back
in the last few years 为什么要加 the
Please read English a few times every morning.为什么time要加s
a few years' time中的year为何要加s'
a few years time中的year为何要加s
a few hundred years ago