单项选择题

When Edison died, it was proposed that the Americans () all power in their homes, streets and factories for several minutes in honor of this great man.

A. turn off
B. turned off
C. must turn off
D. would have turned off

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单项选择题
I am afraid I can’t ()you (); you will have to go to a hotel.

A. put; up
B. put; down
C. put; off
D. put; out
单项选择题
I would gladly lend you the money, but I really ()

A. couldn’t have it
B. didn’t have it
C. shouldn’t have it
D. don’t have it
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