摘要：----You know the exact date you posted the letter, don’t you? ----No. But I remember it was a holiday, happened to be Mother’s birthday. A．when; which B．that; it C．which; that D．that; when
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--You know the exact date ________ you posted the letter, don’t you?
--No. But I remember it was a holiday, _______ happened to be Mother’s birthday.
- A.when; which
- B.that; it
- C.which; that
- D.that; when
--You know the exact date ________ you posted the letter, don’t you?
-- No. But I remember it was a holiday, _______ happened to be Mother’s birthday.
[ ]
A．when; which
B．that; it
C．which; that
D．that; when