21．The statue would be perfect but for a few small __ in its base.
　　[A] mistakes
　　[B] weaknesses
　　[C] flaws
　　[D] errors
　　22．The story that follows .__ two famous characters of the Rocky Mountain gold rush days.
　　[A] concerns
　　[B] states
　　[C] proclaims
　　[D] relates
　　22．The strong storm did a lot of damage to the coastal villages: several fishing boats were _________ and many houses collapsed.
　　[A] wrecked
　　[B] spoiled
　　[C] tom
　　[D] injured
　　24．The strong wind with sand comes from the _________ hill in front of their house.
　　[A] empty
　　[B] isolated
　　[C] bare
　　[D] remote
　　25．The student was just about to _________the question, when suddenly he found the answer． [A] arrive at
　　[B] submit to
　　[C] give up
　　[D] work out
　　26．The sun heats the earth,_________is very important to living things.
　　[A] that
　　[B] what
　　[C] which
　　[D] as
　　27．The supervisor didn' t have time so far to go into it _________, but he gave us an idea about his plan.
　　[A] at hand
　　[B] in turn
　　[C] in conclusion
　　[D] at length
　　28．The survey found that Hungary _________as the most environment-conscious country of East Europe.
　　[A] broke out
　　[B] held out
　　[C] ran out
　　[D] stood out
　　29．The survival of civilization as we know it is_________threat.
　　[A] within
　　[B] towards
　　[C] under
　　[D] upon
　　30．The swimmer was very tired but he _________reach the shore before he collapsed．
　　[A] might
　　[B] could
　　[C] succeeded to
　　[D] was able to

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