Since the time humankind started gardening, we _____to make our environment more beautiful.
#99086
A
try
B
have been trying
C
are trying
D
will try
推荐题目
He insisted that he ________ the bike and therefore __________.
#102359
A
shouldn’t steal; shouldn’t be punished
B
hadn’t stolen; shouldn’t be punished
C
didn’t steal; wasn’t punished
D
not steal; not be punished
In 1960, this was the longest bridge that __________.
#104497
A
was ever built
B
had ever built
C
has ever been built
D
had ever been built