﹣A large number of workers in the factory from the countryside.
﹣And about two thirds of them born in the 1970s.( )
are;were
are;was
is;are
—Your watch looks so nice. It must be expensive. —No. I ____ 20 yuan on it.
—How long have you________? —Since two years ago.
—Do you know whose car is it? —It belongs to_____. It isn’t ______.
The Chinese mainland has become the world's second______ market for iPhone.
Now China is fighting against illegal cooking oil(地沟油), a kind of waste oil _____can cause a lot of illness.