2. It’s hard to enjoy being outside in summer because the mosquitoes are such a ________.
(A) nuisance
(B) abundance
(C) poison
(D) raging
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統計: A(95), B(13), C(30), D(23), E(0) #2951684
統計: A(95), B(13), C(30), D(23), E(0) #2951684