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
－Haven’t you heard from your sister?－____________ She wrote a letter to me last week.
#59920
A
Yes, I have.
B
No, I haven’t.
C
Yes, I did.
D
No, I didn’t.
---___________ English classes do you have every week? --- Five.
#60215
A
How often
B
How long
C
How much
D
How many
There has been a great increase in bicycle sales this year________?
#65436
A
does there
B
isn’t there
C
hasn’t there
D
isn’t it