Theme parks try to make sure that visitors leave _____ more about their theme.

She can’t help ______ for her family often, so she can’t help ______ why life is so hard.

He started to learn English in 1990 and in the years ________ he kept on using it in his work.

Why pleasant smells do not reduce pain in man is a question still _______ by scientists.

---Are all telephone numbers_______ in the directory?    --- Yes, all ________ Jane’s.

_______ from her parents, she was left with her two young sisters--aged three and seven.   

The foreign visitors couldn’t help ________ by the beautiful scenery of the Great Wall.

_______ to the discovery of radium, Madame Curie plays an important role in modern
science.

---She’s feeling very sad over___ of school trip tomorrow.
---So would you if you fell ill on such an occasion.

---It’s a pity that England should have been defeated so easily in the 2010 World Cup.
---They play so well; I really think they are worthy____ a place in the finals.