Chang’e-3 made China become the third nation _____ an unmanned spacecraft on the moon.
His timely warning was_____ help us avoid being cheated.
We were on the point of discussing financial investment_____ the telephone rang unexpectedly.
How can I ever concentrate on my work if you_____ continually_____ me with such silly questions?
The large, water-spouting statue, called “Merlin” -half lion, half fish- is the____ of Singapore.
There has been_____ rising demand for grain as_____ industrial material in spite of the nation’s good harvests.