Success _________three key factors: diligence, talentand luck, of which the first one is of great importance .

Many online games are full of violence, which do harm to the development of the children.—-And that’s _______ my concern lies.

he weekend, my friend asked me for help. Hertemperature was 39.7C and she was ______ a fever.

Mo Yan was ______the Nobel Prize for his great contributions to literature.

The trains___ the travellers who want to go to other places