问题

Sometimes I work _____ the day and sometimes _____ night. [ ]
A: on, at
B: at, on
C: at, in
D:in, at
B: at, on
C: at, in
D:in, at
正确答案是:
同类题型
Who did it better, Bill or Henry?— I think Bill did just _______ Henry.
____ skirt is blue.____ is red. Which of them do you prefer?—______ is OK. I like their styles.
How many hours does the boss make the workers __ a day?–About ten hours.
The Great Wall is ____________ wall in the world. There are many stories about it.