It was （) he saw the doctor coming out of the emergency room with an expression as grave as a judge （) he realized the seriousness of his wife’s illness.

A.the matter was

B.the matter is

C.is the matter

D.was the matter

A.in

B.above

C.on

D.among

A.in

B.for

C.to

D.on

A.chest

B.sheet

C.buttoned

D.duty

A.slide

B.fling

C.halt

D.hop

A.has he seen

B.he has seen

C.saw he

D.he saw

A、as quick as he could

B、as quickly as he could

C、as quick as he can

D、as quickly as he can

A.just saw

B.has just seen

C.had just seen

D.were just seeing

A.privacy

B.morality

C.dignity

D.secrecy

A..for

B.into

C.*

A.visiting

B.to visit

C.having visited

D.to be visiting