He ________ healthy but he takes little exercise.

[　　]

Sally couldn't have written to me, or I ________ received her letter.

[　　]

He ________ to London because I saw him just a moment ago.

[　　]

Not until all the fish died in the river ________ how serious the pollution was.

[　　]

Little ________ about his own safety, though he was in great danger himself.

[　　]

When he woke up, he found himself ________ .

[　　]

He shows everything on his face, ________ he is angry or pleased.

[　　]

________ received doctor's degrees as today.

[　　]

A．Never have so many women

B．Never have there been so many women

C．Never so many women have

D．Never have many women ever

________ his speech was a long one, nobody lost interest.

[　　]

—What was the party like?

—Wonderful. It's years ________ I enjoyed myself so much.

[　　]