问题
How long do you think_________Obama officially takes office in the White House?
A:it will be that
B:will it be until
C:will it be when
D:it will be before
B:will it be until
C:will it be when
D:it will be before
正确答案是：
同类题型
It’s said that the power plant is now ______large as what it was.
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They considered ___ a computer, which was considered ___ a great help in their work.
It was because she got sickshe didn’t come to the party yesterday．