Are these your cousins——_________. They are my sister and brother.

We all breathed a sigh of relief when the news came _____ no one was injured in the accident.

Helen go on the trip with us, but she isn’t quite sure yet.

That was the first time I _______ there andI was impressed by the friendly people very much.

Whom shall I give the document?　 — To ________ is in the office. However, _______to require a written paper for it.