单项选择题

He must have come here yesterday evening, ______ he

A．did
B．has
C．haven't
D．didn't
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单项选择题
He's very tired and he doesn't ______ doing anything instead of sleeping.
A．wish
B．want
C．feel like
D．hope
单项选择题
With the development of production and science, radio ______ a wide application in a short time.
A．found
B．has found
C．finds
D．has founded
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