题目内容：
第50题答案是________ A．free
B．unneeded
C．unemployed
D．busy
参考答案：
答案解析：
单选题：第50题答案是________
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- 题目类型：单选题
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第50题答案是________ A．free
B．unneeded
C．unemployed
D．busy
第50题答案是________ A．free
B．unneeded
C．unemployed
D．busy
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Manyspeciesofanimalswhichoncelivedontheeartharenolongerin__________. A．existenc
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Howclbseparentsaretotheirchildrenhasastrong__________onthecharacterofthechildre
Thetwostories__________witheachother,soIdidn'tknowwhattobeli
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第57题答案是________
第57题答案是________ A．feellike B．feelabout C．feelupto D．feelfor
Peopledecidetogoonthewagonbecause__________.
Peopledecidetogoonthewagonbecause__________. A．theyenjoyhavingonedrinkoneaftera