WHO,together with the medical workers in different parts of the world,_____ tryingto findaway to prevent the disease HINl from________．[ ]

In the dark street, there wasn’t a single person __________ she could turn for help.

MayI open the window to let in some fresh air—___________

Then Wang Ping flashed a switch on a computer screen，and a table and some chairs rose from under the floorby magic

The young girl became so emotionally ____ with that guy ; he was anything but brilliant .