Question

The book has been translated into thirty languages since it ______ on the market in 1973. A．..

The book has been translated into thirty languages since it ______ on the market in 1973. A．had come B．has come C．came D．comes

Answer 1

C

试题分析：考查时态：since后面的时态是过去时，主句是现在完成时，句意：自从1973年上市，这本书已经被翻译成30种语言。选C。 点评：时态的考查结合上下文找到动作发生的时间就好做了。要注意一些固定用法。