How long does a snake sleep? It ______ for eighteen ______ a day.
A. sleep, hour
B. sleeps, hours
C. slept, hours
相关试题
The chairperson is very modest.He never_________.
| A．show off | B．shows on | C．shows off | D．show on |
I don’t know the city. Where can I find ＿＿＿ good restaurant?.
| A．a | B．an | C．the | D．(不填) |
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