Last month I was lucky enough to have a chance to make a trip into _____ space with my friend Li Yan ping, _____ astronomer.
The reason ____he gave for not coming was ____his mother wouldn’t allow him to.
---We haven’t heard from Jane for a long time. ----What do you think_____to her?
—I knocked but nobody answered the door. ----They _____asleep then and didn’t hear you.
Talking over such matters with a foreigner is ____ for me.
We don’t live here;we_____.