there have been a lot of laws controlling the pollution为什么用c
there is a lot of traffic and pollution.为什么用is不用are
there have been a lot of changes in that place同一局转换a lot of
there( ) a lot of sheep and a cow on the farm A.is B.have C
There ___________ a lot of birds in the park.a.is b.have c.a
There has been a huge increase in pollution of the invironme
1.There has been a huge i--------- in pollution of the envir
we have had been having a lot of rain recently 用的是什么时态 为什么这么
A lot of flowers have been planted in the garden.用一般过去时或一般现在
请英译汉There have been a lot of times where I was determined to
There have been a lot of times where I was determined to jus
请翻译There have been a lot of times where I was determined to
There have been a lot of ____in our city since 1990.