Not until he left home ______ to know _______ important the family was for him.
#68340
A
did he begin; what
B
had he begin; how
C
did he begin; how
D
had he begin; what
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12．We will be shown around the city：schools，museums，and some other places， other visitors seldom go．
#74655
A
what
B
which
C
where
D
when
.Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, _________ the number of people infected with the virus is going up sharply.
#66690
A
when
B
that
C
so that
D
where
Later they discovered, ____ was news to him, that Pamela was the headmaster’s daughter.
#73369
A
that
B
which
C
what
D
who