1,I'm afraid I will finish this work on Friday.
2,Though it takes me a long time to work,I must finish it.
3,We mustn't laugh at others when they are in trouble.
4,Though that driving a car is much faster,but we should
take the bus more.
5,
6,I heard Lihong singing at the labour just now,but I don't
know now where is she.
7,
8,Both Lucy and Lily can't play tennis,but they do well in
dancing.
9,He was tierd,but he worked
10,Mike's bike was broken on the way of going to school,
so he was late.