根据下列各句句意和空白处之后的汉语提示词，在空白处指定区域的横线上写出对应单词的正确形式，每空写一词。
.At the railway station we had a long wait but we thought it was ____ (值得的) since we got the tickets.
.Much to her ____ (满意), her boss agreed to her suggestion.
.The scientists are searching for a way to increase grain harvests without ____(扩大) the area of the fields.
.Professor Li, can you make a(n) ____(评论) upon this movie.
.You can ____ (参考) to this book if you want to know more about stars.
.The American president Barack Obama ____ (发表) a speech on the issue of nuclear power last week.
.It is well known that Madam Curie won two Nobel Prizes for her ____ (成就).
.I ____ (尊重) his views, although I do not agree with them.
.The work is being performed smoothly; ____ (因此), we can expect to finish it on time.
.Recently a great amount of wheat grown in that country has been ____ (出口) to many other countries.