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

What’s the trouble with you一I________ a headache.

Look at the photo I took in Chiang Mai, Yunnan Province. ________ the Dai people were having!— Wow! They were celebrating the Water Festival.

Ty to sing more English songs , and you will find it interesting _______ a foreigh language.

don’t try your best to learn all subjects, youwill ___ behind

They also agree that it is the burning of more andmore fossil fuels that has resulted ____ this increase in carbon dioxide.