Li Lei can’t go hiking with us today,because he take care of his sick mother.

I used to spend all my pocket money on clothes and snacks. But now, I try to ______ some money for charities.

The pay phone is across _____ the park. I often go there to call my mother.[ ]

Mr.Wang usually goes to work ______ a car. [ ]

Tom wants to be a singer and he_____. singing lessons to do it.