问题
The post office is closed ______ Saturday afternoon.
A:on
B:in
C:of
D:at;
B:in
C:of
D:at;
正确答案是：
同类题型
Scientists are convincedthepositive effect of laughter_____physical and mental health.
His daughter has ___________ the young politician for five years
1Mycousin___________ about an hour___________ her homework.
The photo reminds him his old grandma.
It is that I can still remember was discussed at the meeting.