--- I haven’t got the reference book yet, but I will have a test on the subject next month.--- Don’t worry. You ________ have it by Thursday.
— Have you found your English book? — I am not sure ____ I could have left it.
The art center is ______ used to be Factory 789 and _______ millions of tractors were made.
____ students should be given more free time is suggested by many experts and welcomed by kids in school.
When I try to find ______that prevent so many people from taking part in the program, it seems to me that there are two main causes.
— Will you go to the annual meeting to be held in Sweden from the 26-30th of August 2008? — That depends on _______ I am invited.