1.(2012课标卷)23. "Life is like walking in the snow", Granny used to say, "because every step ”
A. has shown B. is showing C. shows D. showed
【答案】C
【解析】考查动词的时态。上下文讲的是哲理性的话，上文用的是一般现在时，下文回答时也用同样时态。不要受“Granny used to say”的影响，因为是直接引语。句意：奶奶过去常常说：生活就像在雪地中行走，因为每一步都能看见。
2.(2012课标卷)33.I had been working on math for the whole afternoon and the numbers before my eyes.
A. swim B .swum C. swam D. had swum
