问题

So far, several cases of a disease, _____as bird flu, are reported to have been found in the country [ ]

A: knowing
B: to be known
C: having known
D: known

正确答案是：

同类题型

(2013·高考重庆卷)—It rained cats and dogs this morning.I’ m glad we took an umbrella.—Yeah，we would have got wet all over if we________

The boss said we had only three days to finish the work.-Don’t worry. We have already _____two thirds of it. [ ]

Itwasneverclear ____themanhadn’treportedtheaccidentsooner.[ ]

You leave your kid alone at home. It’s very dangerous.

Many birds fly away because plants die and insects hide_____ coldness_______ winter.