—How did she get infected?
—She ____ the viruses without any protection.
| A．exposed to | B．had exposed to | C．was exposed to | D．has exposed to |
According to WHO, health care plans are needed in all big cities to prevent_________spread of AIDS.
| A．the ; the | B．the ;不填 | C．a ; a | D．不填; the |
Ourresources and fine policy can certainly provide foreigners with the advantages of developing their business.
| A．narrow | B．limited | C．abundant | D．generous |
With food and gunpowder short, the soldiers are suffering from hunger and danger of being attacked by the enemies at any time.
| A．to run | B．to be run | C．run | D．running |
The mother felt herself cold and her hands trembled as she read the letter from the battlefield.
| A．grown | B．grow | C．to grow | D．to have grown |
You cannot predict everything. Often things don’t _____ as you expect .
| A．run out | B．break out | C．work out | D．put out |