____ you promise to buy her a gift, you can’t break it in any case.[ ]

Entry in this competition is restricted________high school students.[ ]

What about _____ a rest—Let’s go for a walk.

__________ my brother __________ I am going to the basketballgame tonight because we both love basketball a lot .

Qinghai-TibetRailway(青藏铁路) wascomple­ted last year. It is the __________ railway that connects Tibet with theother parts of China.