Thanks for _____ care of my dog when I was away. [ ]
A.
take
B.
took
C.
taking
D.
takes
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举一反三
【判断题】VCA can enable a firm to identify its own Strengths and Weaknesses. It is not necessery to comparea firm's VCcompetitors’ VC.企业价值链分析可以使其认识到自身的优势和劣势,所以没有必要将自身价值链与竞争对手的价值链进行对比。
【简答题】Tom’s pain _____ obvious upon his arrival at home, for mum asked pitifully, “Are you feeling all right?” A. could be B. must be C. could have been D. must have been