How long can we read in the library? —It ______ from 8 a.m. to 6p.m..

Susan wanted an evening job that would allow her toher lovely daughter during the day.

The volunteers sent _______ books to a mountain village school on Children’s Day.

Is this ________ key, Tom? —No, that one is ________.

The twins are so much alike that it is difficult to tell one from________.