Do you have any idea about how many companies ( )in the office building?
A. there are
B. are there
C. there is
D. is there
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If I ( ) they were on sale online, I would not have bought the traveling bags in this store.
A. know
B. knew
C. had known
D. have known
My boss refused to give me a pay rise, no matter ( )hard I worked.
A. how
B. where
C. what
D. When
The government believes that local people will welcome the decision, ( )will bring more job opportunities to the city.
A. that
B. where
C. what
D. Which
Thousands of reports and maps have been scanned in and used to make our GPS devices as accurate as possible.
A. 我们用GPS设备制作了成千上万份报告和地图,用来预测未来的天气趋势。
B. 为使我们的GPS设备尽可能准确,成千上万份报告和地图已扫描并使用了。
C. 需要扫描输入千万份报告和地图,才能精确地使用我们的GPS设备来定位。