—Who helped Li Lei with his English? —______, he learnt it by himself. 

We lost the match because they had        players. They had eleven and we had only nine.

---Do you mind my opening the window? It’s a bit hot. ---     .

 Now many young people ________posting articles and photos onto the Wechat (微信) to share with their friends.

______ you live, I will find you at once.