单项选择题

You see the lightning（）it happens, but you hear the thunder later.

A、 for an instant
B、 on the instant
C、 the instant
D、 in an instant

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单项选择题
The decision（）, the next problem was when to start the project.

A、 being made
B、 was to be made
C、 had been made
D、 having been made
单项选择题
（）so many profits have been made in the past 4 years is the strongest argument for continuing the business.

A、 What
B、 Since
C、 Now that
D、 That
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