To succeed in a scientific research project ________.

________ (catch) in the rain, he was wet to the skin.

Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.

I shall never forget ________ (meet) the late Premier Zhou during his inspection of our factory.

“Have you moved into the new flat? ” “Not yet. The rooms ________ (paint). ”