— ______.

A. It's ruler B. It's a ruler C. It's a red ruler D. It's red

A. when does the plane leave B. how long the plane has left

C. when the plane leaves D. when will the plane leave

A. Because B. And C. So D. However

A. two thirds； 1960s B. second three； the 1960s

C. two third； the 1960s D. two thirds； the 1960s

A. a；a B. a；/ C. /；a D. /；/

【题目】Our teacher usually stands the classroom in class.
A.in front of
B.in the front of
C.before
D.behind

【题目】When the man walked ______ the library, he found a cat at the corner.
A.pass
B.past
C.passed
D.by

A. other B. others C. the other D. others’