( )We must look right before the road.
A. crossed B. cross C. crossing
圈出不同类的一项。
（1）bus bike robot
（2）send get train
（3）bus car plane
（4）foot car taxi
（5）ship buscar
( ) Little Jack sometimes goes home foot.
A. byB. atC. on
( ) How do you come to school?_______________________.
A. She usually walks. B. I sometimes come by bus. C. The bus is coming.
( ) Where is the _________? I want to send a post card.
A. bookstore B. post office C. museum