问题
A person with good manners never laughs ____people when they are ____ trouble .[ ]
A: on; in
B: in; at
C: on; at
D:at; in
B: in; at
C: on; at
D:at; in
正确答案是:
同类题型
How many students are there in your school?-There are about eight_______ students.
Rose, mind your step! Aunt Jane slipped over on the wet floor and broke her leg yesterday. — ______.
Did you see Mr. Black just now?—Yes. He ______ his car when I met him.