Jill has a toothache, it's been hurting her for quite a while, _________?
A. isn't it
B. doesn't it
C. hasn't he
D. hasn't it
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-- Frank is up late working again.-- This is the third time this week he's had to study late, _________?
A. isn't it
B. hasn't he
C. isn't he
D. hasn't it
-- Don't you think Jack's health has been ruined by overdrinking?-- Yes, he told me _________ himself.
A. the thing
B. it
C. so
D. the fact
-- It's a fatal disease, isn't it?-- No, I don't believe ________.
A. so
B. in it
C. such
D. in that
同一张图样中,同类图线的宽度应()。
A. 一致
B. 不一致
C. 不同
D. 任意