Thank you for sending us ____ fresh vegetables of manykinds. You have done us ____ great service.

Where have you _______ I didn’t see you a moment ago.— I _______ to the library.

It’ s dangerous to climb the mountains or hills _____ cold and snowy days.

Though ______ of danger, sightseers havebeen flocking to the site where the world’s biggest terrorist Bin Laden lived.

Excuse me， may I speak to Jill，please — .