Shanghai is larger than _______________ city in China.

Every possible means ________ to prevent the air pollution, but the sky is still not clear. [ ]

It was announced that only when the fire was _________ would residnts(居民) be permitted to return to their homes

_____inthequeueforhalfanhour,Tomsuddenlyrealizedthathehadlefthiswalletathome. [ ]

set up a club for football fans, _____ he invited all his friends.