摘要： When I was at school, I up very late, reading story-books. A. used to stay B. used to staying C. was used to stay D. am used to staying
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When I was at school, I ______ up very late, reading story-books.
[
]|
A ．used to stay |
B ．used to staying |
|
C ．was used to stay |
D ．am used to staying |