5．A)on B) in C) with D) about
    6．A)if B) whether C) either D) neither
    7． A)To complete B) Completing
    C) Completion D) To be completed
    8． A)as B) for C) on D) about
    9．A)Unless B) Once C) If D) Although
    10．A) around B) with C) about D) on
    11．A)work B) task C) job D) place
    12．A) on B) with C) after D) by
    13．A) thought B) idea C) thinking D) talk
    14．A)for B) in C) with D) on
    15．A) reap B) harvest C) benefit D) lead