23. Tom had to be told two or three times ________ he could remember what the teacher said.
#79646
A
before
B
when
C
until
D
As
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— Where is my English book?— I brought it to you _____you were in hospital yesterday afternoon.
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A
since
B
if
C
once
D
while
Henry had just given himself for lost ______ he was spotted by a ship.
#31451
A
when
B
while
C
as
D
after
It is ten years _____ I lived in Nanjing, so I know ____ about what it is like today.
#32654
A
since; nothing
B
that; everything
C
before; something
D
since; anything
There was a fierce debate about _____we should go on with experiments on creating new life.
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A
which
B
whether
C
that
D
What