___ to a lot of new ideaswhen studying in college, Mary always does something that others can’t understand to realize her dream.

At ，we eat rice dumplings and have a boat race.

The number of the children in the school ________ about three hundred. ________ of them________ from the countryside.

I had just locked my door ________ I realized I ________ my key on the kitchen table. [ ]

Are you going ___ foot? —-Nowe’re going ___ Tom’s car