Scientists don’t think that a warm winter always has a negative influence on our life,____?
#64541
A
don’t they
B
do they
C
hasn’t it
D
has it
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－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.
---She isn’t a dancing teacher, is she?---_______.
#64970
A
No, but she was.
B
Yes, she isn’t
C
Yes, she wasn’t
D
No, she is