When I am about to go ______a plane to go______, I often think about this.
It was only when her sorrow that Tom looked at her.
Once the poison is _____ , there is no further danger.
---What a large and bright room ! Is it a classroom? ---No, It _____ the students’ reading-room.
I tried to work on, but I was so tired that I could no longer _____ .
---Let’s go to the lecture on International Trade this evening. ---That’ s great. I’ll _____ you at 6: 30.