单项选择题

He ______ when I came into his room last night.

A．was singing
B．sang
C．sings
<上一题 目录 下一题>
热门 试题

单项选择题
Study English hard, ______ you'll fail the exam.
A．or
B．so
C．and
单项选择题
Yesterday I ______ a book in the school library.
A．borrowed
B．borrow
C．was borrowing
相关试题