An idea suddenly came to J.K.Rolling ________ she could write a book about people living in the magic world 
#72915
A
if
B
when
C
that
D
which
推荐题目
While Helen __________ the guitar, her mother came in.
#41299
A
was playing
B
is playing
C
played
D
plays
It _____ ten years since they _____ to France.
#41050
A
was; moved
B
was; have moved
C
is; have moved
D
is; moved