We watched the plane _________ behind the clouds. A: is disappearing B: disappeared C: being disappeared D: disappearing

Police are continuing their search for a teenager who has __________ disappeared.

My English-Chinese dictionary has disappeared. Who ________ have taken it?

Many kinds of wild animals ______ from the earth. A: being disappearing B: being disappeared C: are disappearing D: are disappeared

The picture ____________ has disappeared is very valuable.

Many European Kings felt happier after Napoleon ____ from the scene. A: disappeared B: had disappeared C: was disappearing D: would disappear

What are the possible reasons why the dinosaurs disappeared?

Racial discrimination has disappeared in the United States?

I caught a __________ of the bus before it disappeared around the corner.

I caught a ________ of the taxi before it disappeared around the corner of the street.