In fact, _______ one cause that leads to the problem.
| A．cattle is | B．cattle are |
| C．cattles are | D．the cattles are |
She offered a _________ $ 1，000 for the return of her lost necklace passed down from her grandfather.
| A．prize | B．charge |
| C．reward | D．Loss |
The young man seized the thief by _________ collar and hit him on _________ head.
| A．the; the | B．his; his |
| C．the; his | D．his; the |
The seals _________ living fish.
| A．feed on | B．fed on |
| C．feed by | D．fed by |
Leaves gradually _________ around the fallen trunks.
| A．gathered | B．accumulated |
| C．collected | D．assembled |
—How was the debate last night?
— Super ！ Rarely _________ so much media attention.
| A．a debate attracted | B．did a debate attract |
| C．a debate did attract | D．attracted a debate |