The invention of_________ paper was a great contribution to________human civilization.
A.a;a | B.the;the | C./;/ | D.the;/ |
_____, the fire was discovered soon after it broke out , otherwise it might cause much greater damage.
A.Strangely | B.Eventually | C.Naturally | D.Fortunately |
He is always travelling all over the world, which broadens his _______.
A.horizons | B.altitudes | C.similarities | D.routes |
If you_______ my advice last month, you wouldn’t have lost his job.
A.followed | B.should follow | C.had followed | D.would follow |
Mr.Smith is the only one of those foreigners who ______ in China.
A.work | B.is working | C.are working | D.had working |
----Why didn’t you go to the concert ?
-----I ____a game between two American basketball teams
A.watched | B.had watched |
C.was watching | D.had been watching |