Jack could have avoided that terrible car accident, but he ________ careful enough.
#102113
A
is not
B
was not
C
hasn’t been
D
hadn’t been
推荐题目
The driver could have survived but he the seat belt.
#102832
A
had been wearing
B
hadn't worn
C
wasn’t wearing
D
didn't wear
The old worker insisted that he old, and back to working post again.
#103632
A
wasn’t；be sent
B
wasn’t；was sent
C
be not；send
D
isn’t；sent
Elizabeth believed the dog would die if _____ to her cruel owners so she kept it.
#103787
A
returning
B
was returned
C
it would return
D
returned
Sales of CDs have greatly increased since the early 1990s, when people_____to enjoy the advantages of this new technology.
#104613
A
begin
B
began
C
have begun
D
had begun
In addition to what ________ above, his speech was also involved in some big issues of our society.
#100773
A
mentioned
B
is mentioned
C
was mentioned
D
mentions