Wang Lin reads books at the school library _______ the afternoon every day. [ ]
Could you please clean your room?— OK! I will do it_____ a minute. [ ]
Do you know sound travels very fast? — Yes. But light travels sound.
In the last few years, great changes _________to her, she is not the one that used to be.
Unemployment in some western countries is on the crease. A growing number of young people, ______, are finding themselves out of work.