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
..Is Tina as tall as you?...   She is shorter than me
#59824
A
Yes, she is
B
No, she isn't
C
Yes, she does
D
No, she doesn't
-_______ do you go to the English club?-Once a week.
#59941
A
How old
B
How often
C
How much
D
How many