Question

【题目】The students can't go outschool nights，but they canweekends.
A.in; in
B.on; on
C.in; on
D.on; in

Answer 1

【答案】B
【解析】第一个空“在上学的晚上”，指具体某一天晚上用介词 on；第二个空 on weekends 是固定短语，意为“在周末”，故选B。