Some researchers believed that there is no doubt a cure for AIDS will be found.
Liuxiang earned the respect from the whole world as he hopped down the track to the finishing line, ____the last hurdle.
The machine has been made easier for it____.
----I’ve finished cleaning all the furniture in the room. ----I don’t think so. What about ____ on the balcony?
We are in a difficult position in____ we have nobody properly qualified for this work.
I have no one ____ me, for I can deal with it all by myself.