[单项选择]The poet MM spent several years ___ school in CP.
A. had taught
B. teaching
C. her teaching
D. and to teach

[单项选择]Scientists have spent years into the effects of certain chemicals on the human brain, but with no result（）
A. studying
B. researching
C. investigating
D. inspecting

[填空题]Scientists have spent years _____ into the effects of certain chemicals on the human brain with no result.

[单项选择]He's spent years cultivating a knowledge of art.（　）
A. sharing
B. using
C. denying
D. developing

[单项选择]The two soldiers spent many years together, fighting ____ and sharing their victories and disappointments.
A. face to face
B. side by side
C. back to back
D. step by step

[单项选择]There are several（　） near the high school.
A. flower's shops
B. flowers' shops
C. flowers shops
D. flower shops

[简答题] Over the years I’’ve spent a fair amount of time hanging out with Michael Dell, and what I noticed during my latest visit with him in Austin is how things have changed. Yes, he is still unflappable. And yes, he greets me in his new glossy offices with the same Stepford Wife-like grin he has always had. But he appears thinner now, as if he’’s lost baby fat. While he’’s still slow moving, as if he’’s conserving energy, he now cuts to the quick in conversation. And when he zeroes in on the point he wants to make, when he reiterates why Dell Computer is in a better position than any other PC maker in the world, you realize that the 36-year-old has lost what was once one of his greatest advantages: no one underestimates him anymore. Instead, Michael Dell looms over the PC landscape like a giant, casting a shadow over all his unfortunate competitors. This is a terrible time in a difficult business. PC sales were down for the first time last year. Dell’’s sales will be down, too, also