China understands the situation and needs of underdeveloped countries on the issue of climate change and urges developed countries to support them ______ technology and finance.

There are differences about how _____ we stand to someone we are talking to [ ]

There is no doubt oureducational system leaves something to be desired

Can we get everything ready by the weekend?—It all depends on ________ we can get Mr.Green’s cooperation.

He was _______of selling state secrets and arrested last month．