He is badly down these days. This sentence probably means _____.

Have you heard that a building was blown up last weekend with a number of people in it?—- Yes, _____ news came as _____ shock to me.

We should go to school at 8:00 _____ school mornings.[ ]

The plane from Beijing to Hong Kong ________ half an hour ago.

Excuse me, does Mr. Zhang’s son live here? —He________ be here, but he has moved?