During the holiday I bought a CD player, _____ was rather reasonable.
| A．its price | B．of which price |
| C．the prices of which | D．whose price |
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 |
Portia, for _________ physics had once been very hard, turned out to be a physicist.
| A．whom | B．whose |
| C．that | D．Which |
—It cost me 30 yuan to get here.
—Well, it was crazy of you to take a taxi _________ you would come
by bus as well.
| A．unless | B．when |
| C．if | D．Because |