The project required ten years of diligent research.
A.hardworking
B.basic
C.social
D.scientific
The project required ten years of diligent research.
A.hardworking
B.basic
C.social
D.scientific
It ______ ten years since you left me.
A.has
B.had been
C.was
D.is
After ten years, all these youngsters became_____.
A、growns-ups
B、grown-up
C、growns-up
D、grown-ups
The library is said (burn) ______ down in a fire ten years ago.
This year's production is five times ______ it was ten years ago.
A.what
B.that
C.than
D.as
A、ten-year-old
B、ten years old
C、ten-years-old
D、tenth years old
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