Before a problem can be solved, it must be obvious ________ the problem itself is.[ ]

The fact that many college graduates getlower salary than some workers has ______ an online debate

This year our country will aim to make greater progress in improving people’s living conditions those low-income families’

vernment officials met the workers and engineersworking on the stadium, most _________ being migrant workers.

Come ________ Xin Hua book store and see ________ yourself.