题目

________ all the homework assigned by the school，the students have to work at it till midnight.  A．Completing  B．To complete C．Having completed  D．To have completed 答案：B [考查非谓语动词。此处为目的状语， 因此使用不定式，排除A项和C项，而且不强调完成，因此使用不定式的一般式，故选B项。]There are a lot of colorful flowers on __________ side of the street.A．allB．bothC．either D．every