( )当你问别人你多大了时, 应说: A. How do you go to work ? B. How old are you ? C. Who do you want to go ?
The girls often go ____ on the weekend. A. shopB. shopingC. shopping
My parents always go to work_____7:20 a.m. A. inB. on C. at
I often play ping-pong ________ my friend.
___________ is the first month of a year.
-- When is Tree Planting Day? --It’s ___________ March.