Are there any flights for Hong Kong tomorrow— _______ Whynot give a call to find it out

Haveyou got any friends in China—________．Daming and Lingling are my good friends．

Finding information in today’s world is easyThe ________is how you can tell if the information you get is useful or not

Mummy, I have broken my train.一I told you so. You _______ on it.

The experiment has____ the possibility of the existence of any life on that planet, but it does notmean there is no life on other planets.[ ]