问题
Hetelephoned the travel agency to_______three air tickets to London
A:is it since
B:will it be before
C:is it when
D:will it be since
B:will it be before
C:is it when
D:will it be since
正确答案是:
同类题型
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ing to the agreement, nobody _______ letout how they spent the three days in the cave.