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