After months of voyage, Columbus arrived in what later to be a new continent.
#101234
A
had been proved
B
was proved
C
had proved
D
proved
推荐题目
---What attracts people to California is its pleasant climate and relaxed lifestyle.---This is ___ each year a great number of people from all over the world try to ___ to California.
#100729
A
how; immigrate
B
Why; immigrate
C
because; remove
D
why; remove
There was a knock at the door. It was the second time someone _______ me that evening.
#104453
A
had interrupted
B
would have interrupted
C
to have intrrupted
D
to intrrupt
-Why does the Lake smell terrible?-Because large quantities of water__________.
#104945
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
—What about your self-drive trip yesterday?—Tiring! The road is being widened, and we______________ a rough ride.
#100451
A
had
B
have
C
would have
D
have had