Ex 2 combine two sentences into a new one using the given words without changing them in any way 
1 the book is so interesting that i have read it twice  (such)
2 I'll give you a call immediately after I have finished my work ( as soon as)
3 The villagers are trying to learn English. They can communicate with foreign customers (order ) 
4 the children are eager to visit Hue next week (forward)
5 It's pity she doesn't share memories or her trip with me ( I wish )