There _______ less air pollution in the country .
#42441
A
are
B
is
C
have
D
has
推荐题目
Fred’s grandfather _______three years ago. He _______for three years.
#41723
A
died; died
B
was dead; died
C
died; has been dead
D
died; has died
Miss Jones___________Wuxi for one year, but she ________ the Tai Lake.
#41726
A
has been to; hasn’t gone to
B
has been in; has been to
C
has come to; hasn’t been to
D
has been in; hasn’t been to
No one knew what because of the thick fog.
#39880
A
he had happened
B
had happened to him
C
had he happened
D
has happened to him