高一上冊(cè)Unit 4測(cè)試
2009-12-31 00:00:00
中學(xué)英語之友·高一版 2009年8期
一、單項(xiàng)選擇(每小題1分，共15分)
1.She ran to the second floor. There she stopped， listening to the strange sounds，______the
whole house moved.
A. when
B. while
C. before
D. after
