Since it will take years to know the effect of genetically modified food, it’s more sensible to give it a second thought before we eat it, it?
#64705
A
isn’t
B
is
C
won’t
D
will
推荐题目
—I don't imagine Russ and his poor dog had a good time on the deserted island，________？—I have no idea.
#64455
A
didn't they
B
do you
C
did they
D
hadn't they
--_______ will your English teacher come back?-- In two days.
#60019
A
How often
B
How long
C
How soon
D
How far
— _______ classes do you have every weekday?—Seven classes.
#59904
A
How many
B
How much
C
How long
D
How often