It is not until you have lost your health____you know its va

It is not until you have lost your health____you know its value.
A.until
B.when
C.what
D.that
____ at the news that I didn’t know what to say to comfort her.
A.So sad she looked
B.So sad did she look
C.So sadly she looked
D.So sadly did she look
There was a traffic jam,but she____get to the destination in time.
A.could
B.might
C.ought to
D.was able to
He lost the watch____ he spent lots of money.
A.in which
B.at which
C.on which
D.to which
If you ___ to see Kate,what would you tell her?
A.are
B.will be
C.must
D.were