. -When shall we go to the museum, this afternoon or tomorrow morning? -_____ is OK. I’m free these days.
My shoes are worn out.They need_______.
_______ Andy was playing,his mother came home.
一Look! There is a small bridge on the river. 一It ________ two days ago.
It is said that the gravity on Mars is only about __________ of the gravity on earth.
---I met Daniel in the street yesterday, I ________ him since he left for Beijing. --- Well, does he look like what he used to be?