The country has already sent up three unmanned spacecraft, the most recent__at the end of last March.

In the reading room, we found her 　　　 at a desk, with her attention _____ 　　　 on a book. 

 So far, about 40 houses have fallen down under the weight of the snow , with 22people       .

(2014·山东实验中学一模)With his attention________on his mobile phone，he didn’t notice his headteacher’s appearance.

With his eyes ________ the work attentively, he didn’t know what was happening outside.