In April, 2009, President Hu inspected the warships in Qingdao, ___________ the 60th anniversary of the founding the PLA Navy.
----Promise you’ll never wear this kind of dress! ----________. What if I will give a performance?
----Will you go to Tom’s 18th birthday party? ----If you go, ___________.
The reason why I burst into tears is _________ I don’t want to part with my mother.
——Would you mind if I keep the door open? ——____________.
In the north people sometimes tie straw ropes (草绳) round the trees in winter to ______ them from the cold.