—Where did you ______on vacation? —I_____to Shanghai.
I think no bed here is big enough for him______.
-------I called you at half past nine this morning, but there was no answer.------Oh, sorry. I _____ with my cousin in the supermarket.
Water is so important that ______ everyday tasks can be completed without it.
Last week Lily’s father bought her__________MP4 as___________birthday present.
—Please don't throw paper on the ground. —________,I won't.