问题

Once there was ______time _____people walked without shoes
A:a ;that
B:a ;when
C:the ;that
D:the ;that
B:a ;when
C:the ;that
D:the ;that
正确答案是:
同类题型
The news of the mayor’s coming to our school for a visit was _______ on the radio yesterday.
______ until the lights have turned togreen
The power failure made ________ difficult for us to complete the task on time. [ ]
The discovery of how bronze is made was probably accidental, but itto be an important event.