V.阅读短文，用栝号内所给动词的现在完成时形式及since/for填空Thirteen-year-oldRonnieSegal1.(love)math2.(since/for)hewasalittleboy.“I3.(be)interestedinnumbers4.(since/for)nineyearsfivemonthst

　　V.阅读短文，用栝号内所给动词的现在完成时形式及since/for填空

　　    Thirteen-year-oldRonnieSegal1.(love)math2.(since/for)hewasalittleboy.“I3. (be)interestedinnumbers4.(since/for)nineyearsfivemonthsthreeweeksandtwodays”’saysRonnie.

　　5.(Since/For)thepastyearsRonnie6.(attend)graduate-levelclassesattheuniversity.He7.  (notdo)badly.8.(Since/For)Januaryhe9. (take)fiveexamsand10.(notget)agradeoflessthan100onanyofthem.