Richard was called in by the police to answer questions _______ the disappearance of Thomas Ripley, whose relatives were so ______ his present situation.

— Have you called Mr. Johnson’s office? — Yes, he _____ back before tomorrow. So he can attend our meeting on time.

--- The patient looks much better.    is it that has made him      he is today?--- Perhaps the special medicine and his family’s patient care.  

— 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.

The newly published book, which refers _______ basic English grammar, is _______only for beginners.